Kepler’s First Law of Planetary Motion: A Comprehensive Guide

keplers first law of planetary motion

Kepler’s First Law of Planetary Motion states that each planet’s orbit around the Sun is an ellipse, with the Sun’s center located at one focus of the orbital ellipse. This fundamental law, derived from the observations of the renowned astronomer Johannes Kepler, has been instrumental in our understanding of the dynamics of the solar system. … Read more

13 Variable Motion Examples: Detailed Explanations

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The variable motion is uneven change in motion of the object. It is also known as non-uniform motion as the velocity varies.

Following are the variable motion examples

The motion of a minor planet

Generally, the minor planet is also known as an asteroid.

It is moving around the sun in an elliptical orbit. The motion of the asteroid is variable around the sun. Sometimes the motion of the asteroid is changed due to the strike of another asteroid or another planet’s gravitational effect.

Car coming to an abrupt stop

The car runs with uniform velocity on the road during a long drive.

When we are applying the brake to stop the car, The velocity of the car is continuously decreasing till it stops. This increase and decrease in the velocity in a period of time are known as variable motion.

Take off and landing of an airplane.

The airplane looks very beautiful with the uniform motion in the sky.

The take-off and the landing of the airplane is a difficult tasks. During takeoff, The velocity of the airplane increases from the rest.

variable motion examples
Take off Credit Wikipedia

During landing, The velocity of the plane decreases and comes to rest at high speed.

The arrival of the train at the station

The train runs at a constant speed from one station to the next station.

The immediate braking of the train is difficult, so the driver applies brake 1 or 2 km before the station.

The motion of the train on its arrival at the station is variable.

Running of horse in a race.

It is wonderful for one to ride on a horse.

The speed of the horse will be different during a long route.

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Running horse credit Wikimedia

The horse will run according to its energy.

Starting motion of vehicle from rest

The starting of any vehicle requires traction effort.

The velocity of the vehicle is rising from zero. We have a variety of vehicles like bikes, scooters, cars, trucks, etc. For every vehicle, the starting of the vehicle possesses variable motion.

Our speech or talk

When we deliver a speech, our speed of words delivers in an equal number of time intervals.

We can say that our speech is delivered with variable motion.

Motion of pendulum

The motion of the pendulum is often found in the clock. Now a days, these clocks are rarely found.

In the pendulum, the motion is maximum in the middle of the distance, continuously reducing till the end.

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Pendulum Credit Wikipedia

The motion will turn zero at the end for a second. The cycle is repeated for an infinite time.

Throwing of ball

If one throws a ball in the sky,

The ball’s motion continuously increases and decreases due to gravitational force.

So the motion of the ball is a variable motion on earth.

Jumping Ball

If a ball is thrown on the ground, It will strike the ground and jump back.

The motion of the ball, throw and jump both are variable.

The ball’s jumping will continuously decrease in a given period of time due to variable motion.

Car driving on slant road

When a car passes through the diagonal road,

Even if we keep the engine speed the same, the car’s velocity decreases on climbing. The decrease in velocity depends on the slant of the road.

The variable motion is applicable on both sides. Either your motion is ascending or descending.

The motion of a box or body on a rough surface

If one box passes through the rough surface, it will come across the friction of the rough surface.

The friction will try to reduce the speed of the box; thus, this kind of motion is termed variable motion.

The friction on the rough surface is more maximum than on the polished surface.

Passing through the crowded location

This is a very practical example.

If one is passing through the open road, his motion is uniform. But if one is passing through a crowded location, the person’s motion continuously varies according to traffic.

The main difference between the variable motion and the uniform motion is stated as follows:

In variable motion – The motion of the body is continuously changed or varies from one location to another location

In uniform motion – The body’s motion remains unchanged or fixed from one location to another, for example, the motion of all nine planets around the sun.

Conclusion

There are numerous examples of the variable motion in nature. The variable motion is nothing but the velocity variation in a given period of time. It is also known as non-uniform motion as the velocity varies.

Also Read:

15+ Vertical Motion Examples: Detailed Explanations

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Introduction to Vertical Motion

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pixabay

Vertical motion refers to the movement of an object in the vertical direction, either upward or downward. It is a fundamental concept in physics that helps us understand the motion of objects under the influence of gravity. In this article, we will explore the definition of vertical motion and delve into the explanation of the vertical axis.

Definition of Vertical Motion

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Vertical motion is a type of motion that occurs along the vertical axis, which is perpendicular to the horizontal axis. It involves the displacement, velocity, and acceleration of an object as it moves either upward or downward. Understanding vertical motion is crucial in various fields, including physics, engineering, and sports.

When an object is in free fall, it experiences vertical motion under the influence of gravity. Free fall refers to the motion of an object solely under the force of gravity, without any other external forces acting upon it. This concept is closely related to projectile motion, which involves the motion of an object launched into the air at an angle.

Explanation of the Vertical Axis

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The vertical axis is an imaginary line that runs perpendicular to the horizontal axis. It represents the direction of motion in the vertical plane. In vertical motion, the positive direction is usually considered upward, while the negative direction is downward.

Gravity plays a significant role in vertical motion. It is the force that pulls objects downward towards the Earth’s surface. As a result, objects in vertical motion experience acceleration due to gravity. This acceleration is constant near the Earth’s surface and is denoted by the symbol ‘g’. The value of ‘g’ is approximately 9.8 m/s².

The motion equations of vertical motion allow us to calculate various parameters such as displacement, velocity, and time of flight. These equations take into account the initial velocity, acceleration due to gravity, and time. By utilizing these equations, we can determine the maximum height reached by an object, the time it takes to reach that height, and the total time of flight.

In vertical motion, the initial velocity and launch angle determine the trajectory of the object. The motion follows a parabolic path, resulting in a characteristic shape known as a parabolic trajectory. The launch angle affects the range and maximum height achieved by the object.

It is important to note that vertical motion is not limited to upward motion. Objects can also move downward, experiencing negative displacement, velocity, and acceleration. The force of gravity acts in the same direction regardless of the motion being upward or downward.

In conclusion, vertical motion is a fundamental concept in physics that involves the movement of objects along the vertical axis. Understanding the physics of vertical motion allows us to analyze and predict the behavior of objects in free fall or projectile motion. By applying the principles of kinematics, we can calculate various parameters and gain insights into the dynamics of vertical motion.

Understanding Vertical Motion

Vertical motion is a fundamental concept in physics that involves the study of objects moving in the vertical direction, either upward or downward. It is an essential aspect of kinematics, which is the branch of physics that deals with the motion of objects without considering the forces causing the motion. Understanding vertical motion is crucial for comprehending various phenomena such as free fall, projectile motion, and the effects of gravity on objects.

Vertical Motion Equation Examples

To describe and analyze vertical motion, several equations are used. These equations relate the variables of displacement, velocity, acceleration, and time. Let’s take a look at a few examples:

  1. Free Fall: When an object falls freely under the influence of gravity, its vertical motion can be described using the equation:

Vertical Motion Equation 1

where d is the displacement, g is the acceleration due to gravity, and t is the time.

  1. Projectile Motion: In projectile motion, an object is launched into the air at an angle. The vertical motion of the object can be described using the equation:

Vertical Motion Equation 2

where d is the displacement, vy0 is the initial vertical velocity, g is the acceleration due to gravity, and t is the time.

  1. Height Calculation: The maximum height reached by an object in vertical motion can be calculated using the equation:

Vertical Motion Equation 3

where h is the maximum height, vy0 is the initial vertical velocity, and g is the acceleration due to gravity.

Influence of External Forces on Vertical Motion

In vertical motion, external forces can have a significant impact on the object’s behavior. The force of gravity plays a crucial role in determining the acceleration of the object. Regardless of whether the motion is upward or downward, the force of gravity always acts in the downward direction, causing the object to accelerate downward at a constant rate of approximately 9.8 m/s².

Other external forces, such as air resistance or buoyancy, can also affect vertical motion. For example, when an object falls through the air, air resistance opposes its motion, causing it to experience a drag force. This force can influence the object’s acceleration and ultimately its velocity and displacement.

Independence of Vertical and Horizontal Motions

One of the fundamental principles of vertical motion is that it is independent of horizontal motion. This means that the vertical and horizontal components of motion can be analyzed separately. The motion of an object in the vertical direction does not affect its motion in the horizontal direction, and vice versa. This principle allows us to break down complex motions, such as projectile motion, into simpler components for analysis.

Shared Concepts and Principles

The study of vertical motion shares several concepts and principles with other branches of physics. Some of these include:

  • Acceleration: Vertical motion involves the concept of acceleration, which is the rate of change of velocity. In vertical motion, acceleration is influenced by external forces such as gravity.

  • Velocity: Velocity is the rate of change of displacement. In vertical motion, velocity can be positive (upward motion) or negative (downward motion), depending on the direction of the displacement.

  • Displacement: Displacement refers to the change in position of an object. In vertical motion, displacement can be measured in terms of height or distance traveled vertically.

  • Time of Flight: The time of flight is the total time taken by an object to complete its vertical motion. It is an important parameter in analyzing vertical motion.

  • Launch Angle: In projectile motion, the launch angle determines the initial direction of the object’s motion. It affects the range, maximum height, and time of flight of the projectile.

By understanding the principles and equations governing vertical motion, we can analyze and predict the behavior of objects moving in the vertical direction. Whether it’s a falling object, a projectile, or any other vertical motion scenario, the concepts of motion under gravity provide a solid foundation for understanding and explaining these phenomena.

Vertical Motion in Physics

Vertical motion is a fundamental concept in physics that involves the study of objects moving in the vertical direction, either upward or downward. It is an essential part of kinematics, which is the branch of physics that deals with the motion of objects without considering the forces causing the motion.

Galilean Vertical Motion Examples

Galileo Galilei, an Italian physicist and astronomer, made significant contributions to the understanding of vertical motion. He conducted experiments and formulated laws that laid the foundation for our understanding of free fall and projectile motion.

In free fall, an object falls under the influence of gravity alone, without any other forces acting upon it. The acceleration due to gravity is constant, and objects in free fall experience the same acceleration regardless of their mass. This means that all objects, regardless of their weight, fall at the same rate. An example of free fall is dropping a ball from a certain height and observing its motion.

Projectile motion, on the other hand, involves objects that are launched into the air with an initial velocity and then follow a curved path under the influence of gravity. This motion can be seen in various real-life scenarios, such as a baseball being thrown or a cannonball being fired. The path followed by a projectile is a parabolic trajectory, and its motion can be analyzed using motion equations.

Examples of Vertical Motion According to Galileo

To better understand vertical motion, let’s consider a few examples. Imagine throwing a ball straight up into the air. As the ball leaves your hand, it experiences an initial upward velocity. However, due to the force of gravity, the ball gradually slows down until it reaches its highest point, known as the maximum height. At this point, the ball momentarily comes to a stop before starting its descent back to the ground. The motion of the ball can be described using various kinematic equations, which relate the initial velocity, acceleration, time of flight, and maximum height.

Another example of vertical motion is dropping an object from a certain height. As the object falls, it accelerates due to the force of gravity. The time it takes for the object to reach the ground can be calculated using kinematic equations. Additionally, the height from which the object was dropped can be determined by measuring the time it takes to fall and using the equations of motion under gravity.

Comparison with Aristotle’s Understanding

Before Galileo’s contributions, the understanding of vertical motion was based on the teachings of Aristotle, a Greek philosopher. Aristotle believed that heavier objects fell faster than lighter objects. However, Galileo’s experiments and observations contradicted this notion. Through his experiments, Galileo demonstrated that objects of different masses fall at the same rate in the absence of air resistance. This understanding revolutionized the field of physics and laid the groundwork for our modern understanding of vertical motion.

Vertical Circular Motion Examples

Vertical circular motion involves objects moving in a circular path in the vertical plane. A common example of this is a roller coaster. As the roller coaster car moves along the track, it experiences changes in velocity and acceleration due to the changing direction of its motion. The force of gravity plays a crucial role in maintaining the car’s motion and preventing it from leaving the track. Understanding the principles of vertical circular motion is essential for designing safe and thrilling roller coasters.

In conclusion, vertical motion is a fascinating aspect of physics that encompasses various phenomena such as free fall, projectile motion, and vertical circular motion. By studying the principles and laws governing vertical motion, we can gain a deeper understanding of the fundamental concepts of physics and their applications in the real world.

Real-Life Vertical Motion Examples

Everyday Life

Vertical motion is a fundamental aspect of our everyday lives. From dropping objects to jumping, we encounter examples of vertical motion all the time. One common example is free fall, where an object falls under the influence of gravity alone. When we drop a pen or a ball, it accelerates downward due to the force of gravity. This motion follows the principles of physics, specifically the laws of motion and gravity.

Sports

Vertical motion plays a significant role in various sports. Take basketball, for example. When a player shoots the ball, it follows a parabolic trajectory, exhibiting projectile motion. The ball is launched at an angle, and its motion is influenced by gravity, acceleration, and velocity. The height calculation, time of flight, and maximum height reached are all factors that determine the success of the shot. Understanding the physics of vertical motion helps players improve their shooting skills.

Amusement Parks

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Amusement parks are filled with thrilling rides that showcase vertical motion. Roller coasters, for instance, provide an exhilarating experience as they climb steep inclines and then rapidly descend. These rides rely on the principles of physics to create a sense of excitement. The initial velocity, acceleration, and force of gravity determine the speed and intensity of the ride. The feeling of weightlessness during certain moments is a result of the motion equations and the concept of free fall.

Technology

Vertical motion is also integrated into various technological advancements. Elevators, for instance, rely on vertical motion to transport people between different floors of a building. The motion under gravity is controlled to ensure a smooth and safe ride. The concept of terminal velocity is utilized to regulate the speed of the elevator car. Understanding the physics behind vertical motion is crucial for engineers and designers to create efficient and reliable vertical transportation systems.

In conclusion, vertical motion is present in numerous aspects of our lives, from everyday occurrences to sports, amusement parks, and technology. By understanding the principles of physics related to vertical motion, we can appreciate the mechanics behind these examples and gain a deeper insight into the world around us.

Displacement of Objects in Vertical Motion

In the field of physics, the displacement of objects in vertical motion refers to the change in position of an object as it moves either upwards or downwards. This concept is crucial in understanding various aspects of motion, such as free fall, projectile motion, and the effects of gravity on objects.

Displacement of Objects in a Slightly Horizontal Path

When discussing the displacement of objects in vertical motion, it is important to consider situations where the motion may not be purely vertical. In some cases, objects may experience a slightly horizontal path along with their vertical motion. This can occur, for example, when a projectile is launched at an angle. In such cases, the displacement can be broken down into its vertical and horizontal components, allowing for a more comprehensive analysis of the motion.

Common Characteristics of Horizontal and Vertical Motions in a Projectile

In projectile motion, which involves both horizontal and vertical components, there are certain common characteristics that can be observed. These characteristics include the fact that the horizontal motion is constant and unaffected by gravity, while the vertical motion is influenced by gravity. Additionally, the time of flight, maximum height, and range of the projectile can all be determined by analyzing the vertical displacement.

To better understand the relationship between horizontal and vertical motions in a projectile, let’s take a look at the following table:

Characteristic Horizontal Motion Vertical Motion
Initial Velocity Remains constant Changes due to gravity
Acceleration None Affected by gravity
Velocity Remains constant Changes due to gravity
Displacement Constant Changes due to gravity
Trajectory Straight line Parabolic

Similarities between Horizontal and Vertical Motions

Although horizontal and vertical motions have distinct characteristics, there are also some similarities between the two. Both types of motion can be described using kinematic equations, which allow for the calculation of various parameters such as displacement, velocity, and time. Additionally, the force of gravity plays a significant role in both horizontal and vertical motions, albeit in different ways.

In vertical motion, the force of gravity acts vertically downwards, influencing the acceleration and velocity of the object. In horizontal motion, on the other hand, the force of gravity does not affect the motion directly, as it acts perpendicular to the direction of motion. However, it is important to note that the force of gravity can indirectly impact the horizontal motion by affecting the vertical component of the motion.

In conclusion, understanding the displacement of objects in vertical motion is essential in comprehending various concepts in physics. Whether it’s analyzing the motion of objects in free fall, projectile motion, or calculating the height and time of flight, the principles of vertical displacement play a crucial role in unraveling the mysteries of motion under gravity.

Frequently Asked Questions about Vertical Motion

What is the gravitational potential energy of an object in vertical motion?

The gravitational potential energy of an object in vertical motion refers to the energy that an object possesses due to its position in a gravitational field. It is dependent on the object’s mass, the acceleration due to gravity, and its height above a reference point. The formula to calculate gravitational potential energy is:

Gravitational Potential Energy = mass * gravity * height

Why do some objects in vertical motion get displaced horizontally?

Objects in vertical motion can get displaced horizontally due to the presence of an initial horizontal velocity or a force acting on the object in a horizontal direction. This horizontal displacement is a result of the object’s motion in both the vertical and horizontal axes. In the absence of any horizontal forces, the object will follow a purely vertical trajectory.

How does horizontal motion affect vertical motion?

Horizontal motion and vertical motion are independent of each other. The horizontal motion of an object does not affect its vertical motion, and vice versa. This means that an object can experience motion in one axis without any influence from the other axis. For example, a projectile can be launched horizontally while experiencing vertical motion due to the force of gravity.

What motion occurs on the vertical axis?

On the vertical axis, objects in vertical motion experience either upward motion or downward motion. Upward motion occurs when an object is moving against the force of gravity, while downward motion occurs when an object is moving in the same direction as the force of gravity. The motion on the vertical axis is governed by the laws of kinematics and the force of gravity.

Why are vertical and horizontal motions independent?

Vertical and horizontal motions are independent because they are governed by different physical principles. The vertical motion of an object is influenced by the force of gravity, while the horizontal motion is influenced by external forces or initial velocities. The two motions occur in perpendicular directions and do not affect each other’s trajectory or velocity.

What do horizontal and vertical motions of a projectile have in common?

The horizontal and vertical motions of a projectile have some common characteristics. Both motions are influenced by the force of gravity, and both follow a curved path known as a parabolic trajectory. Additionally, the time of flight, maximum height, and range of a projectile are determined by both the horizontal and vertical components of its motion.

How to use the vertical motion formula?

To use the vertical motion formula, you need to know the initial velocity, acceleration due to gravity, time, and displacement in the vertical direction. The vertical motion formula is:

Displacement = (Initial Velocity * Time) + (0.5 * Acceleration * Time^2)

By plugging in the known values into the formula, you can calculate the vertical displacement of an object at a given time. This formula is derived from the equations of motion under gravity and can be used to analyze the vertical motion of objects in free fall or projectile motion.

Conclusion

In conclusion, vertical motion examples are a fascinating aspect of physics that help us understand the behavior of objects moving up or down. Through the study of free-falling objects, projectiles, and simple pendulums, we can observe the principles of gravity, acceleration, and motion in action. Whether it’s a ball being thrown into the air, a rocket launching into space, or a swinging pendulum, vertical motion is all around us. By analyzing these examples, we can gain a deeper appreciation for the laws that govern the world we live in. So next time you see something moving vertically, take a moment to marvel at the wonders of physics at play.

Frequently Asked Questions

What does ‘vertical’ mean in the context of physics?

‘Vertical’ in physics refers to the direction that points directly upwards or downwards. It is perpendicular to the surface of the earth. Vertical motion involves movement in this direction, such as the upward or downward movement of an object under the influence of gravity.

Can you give some examples of vertical movement?

Yes, examples of vertical movement include a ball being thrown straight up into the air and coming back down, an elevator moving up or down in a building, or a skydiver falling towards the earth after jumping out of a plane. All these examples involve movement in the vertical direction.

How does Aristotle’s concept of vertical motion differ from Galileo’s?

Aristotle believed that heavier objects fall faster than lighter ones in vertical motion. Galileo, on the other hand, proposed that all objects, regardless of their mass, fall at the same rate in a vacuum. This is due to the force of gravity acting equally on all objects.

How does horizontal motion affect vertical motion?

Horizontal and vertical motions are independent of each other. This means that the horizontal motion of an object does not affect its vertical motion and vice versa. For example, in the case of a projectile, the horizontal and vertical motions can be analyzed separately to determine the object’s overall trajectory.

Can you provide an example of a vertical motion equation?

Sure, a common vertical motion equation is the equation of motion under gravity, which is: h = ut + 0.5gt^2. Here, ‘h’ is the height, ‘u’ is the initial vertical velocity, ‘t’ is the time, and ‘g’ is the acceleration due to gravity.

What is a real-life example of vertical motion?

A real-life example of vertical motion is a person jumping off a diving board. When the person jumps, they initially move upwards against gravity. Once they reach the peak of their jump, they start moving downwards due to the force of gravity.

How can I use the vertical motion formula?

The vertical motion formula can be used to calculate various aspects of an object’s motion, such as its displacement, velocity, or the time it takes to reach a certain height. You simply need to input the known values into the formula and solve for the unknown.

Does vertical velocity change?

Yes, vertical velocity changes due to the force of gravity. When an object is thrown upwards, its velocity decreases until it reaches the peak of its trajectory, at which point its velocity is zero. As it falls back down, its velocity increases.

What is a vertical motion model example?

A vertical motion model example could be a model of a ball being thrown straight up into the air. The model would take into account the initial velocity of the ball, the acceleration due to gravity, and the time it takes for the ball to reach its peak and return to the ground.

Why are vertical and horizontal motions considered independent?

Vertical and horizontal motions are considered independent because they do not affect each other. The velocity of an object in the horizontal direction does not influence its velocity in the vertical direction, and vice versa. This principle is a key aspect of kinematics, the branch of physics that deals with motion.

Also Read:

19+ Vibratory Motion Examples: Detailed Explanations

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The perturbation imposed to cause the back and forth motion of the object is said to be vibratory motion.

These vibrations are carried in the surrounding molecules and the molecules get energy and oscillate to and fro. The motion of the vibrating objects is about a fixed point. Lets us discuss some of the vibratory motion examples listed here below:-

Spring

The spring is an elastic object and has stored potential energy. Upon pressing or stretching the spring, it starts to vibrate to and fro. This is because on compressing or elongating the spring, the spring potential energy is generated which is converted into the kinetic energy on releasing the force incident on the spring.

Tuning Fork

Upon hammering the tuning fork it vibrates at its frequency. This vibrational energy generated is carried by the air molecules in the surroundings and hence the sound wave frequency created is transferred to the listener’s ears.

Depending upon the prong length, each fork produces the vibrational frequencies at a different level and hence it is also used by the musicians.

Guitar Strings

As the guitarist plucks the string on the guitar, it vibrates and produces a pleasant sound of a note.

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Vibrating guitar string; Image Credit: pixabay

The vibrating string produces a sound of the same frequency till it comes to a rest or changed the frequency of the vibrating string by playing another note bringing it to rest.

Vibrating Blade on the Edge of the Table

On keeping one end of the blade on the edge of the table, applying the pressure on the other end of the blade, and releasing the pressure, it will start vibrating at a certain frequency.

Object Moving on a Rough Surface

While the object is moving on the rough surface, the frictional force is exerted on the surface of the object that is in contact with the rough surface that is responsible to resist the motion of the object.

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Skating on a rough surface; Image Credit: Pixabay

The frictional force will produce the vibrational pattern in the object, thus generating heat energy.

Drilling

On passing the electric current to the drilling machine, the drilling rod on the machine will start rotating producing the vibratory motion too due to the acceleration of the drilling rod.

Sawing

While sawing the wood or metal, the sharp edge of the seesaw rubs across the cross-sectional area of the object that is being cut.

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Chainsaw; Image Credit: Pixabay

Due to the rubbing of surfaces, the frictional force comes into the picture that resists the motion of the seesaw across the object. Some energy is lost in the form of vibrational energy.

Talking

While talking there is a vibration in the vocals.

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Vibrations producing sound; Image Credit: pixabay

The vibrations generated in the vocals travel through the molecules in the air generating the sound waves. Thus the vibrational energy is transferred into the sound energy in the medium.

Drumming

As the force is applied to the drum, it starts vibrating thus producing sound.

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Drumming; Image Credit: pixabay

This vibrational energy is transferred in the air, and the molecules in the air oscillate back and forth transferring the energy for as long as it is possible. This vibration pattern reaches the eardrum and we are able to hear the sound of a drum.

Swing

The swing is attached to a point fixed on the stationary pole from where the swing oscillates. While the swing is in motion, there is frictional force acting on the point of extension due to which the vibratory motion comes into the picture. The tensional force is also developed along the length of the swing.

Playing Music on a Cell Phone

While playing the audio on the mobile, the vibrations due to audio waves are produced. If you touch the mobile phone your hand will receive vibrations. These vibrations are grasped by the molecules in the surrounding air and the audio wave reaches the listener’s ear.

Woofer

The woofer of the loudspeaker oscillates to and fro giving out the audio waves.

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Speaker; Image Credit: pixabay

The vibratory motion of the woofer is produced due to the magnetic force imposed on the woofer. If you hold your hand in front of the woofer you will feel the pressure of the magnetic and audio waves emerging from the vibrating woofer.

Utensils

When you bang the utensils it will produce a vibratory motion. Depending upon the modulus of elasticity, every object produces a different sound. The vibratory motion of the object produces sound.

Generator

The generators are used for various purposes like converting mechanical energy to electrical energy. You must have realized that as soon as you turn on the generator, you can hear an unpleasant sound generated from the generator. This is due to the vibratory motion from the generator due to the motors and the motion of the conductor in the magnetic field.

Earthquake

As the seismic wave approaches the Earth’s surface, there is a vibratory motion of the ground.

There are many accidents, road slides, and building collapse due to these vibrations. We commonly say that the Earth shakes due to seismic activities. The magnitude and intensity of the Earthquake is the maximum at the point of origin of these seismic waves.

Stretching Rope

Upon stretching the rope, the rope oscillates forming a single loop of waves. The tensional force is built across the length of the rope on stretching due to which the rigidity of the rope changes and it starts vibrating.

Hitting on a Bowl of Water

If you take water in the bowl and touch the bowl with a small rod, you will notice the formation of concentric circles of water in the bowl.

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Music created from the vibrations of metallic bowl; Image Credit: pixabay

The vibrations given to the bowl are carried by the volume of water thus the waves produce travel on the surface of the water.

Two Objects Colliding

Upon hitting the two objects together, the kinetic energy will be converted into vibrational energy, and this vibrational energy is converted into sound energy as the vibrational energy is grasped by the molecules in the surrounding.

Bell

If you hold a bell in your hand and let it ring, you can feel the vibrational motion of the bell by your hand.

Upon collision, the bell produces the vibrational motion and hence the vibrational motion gives the sound.

Flowing Tap Water

The vibratory motion of the object held under the flowing tap water is seen often. Due to the flow of water, the object will undergo pressure with the imposing energy of water which is converted into vibratory energy.

Frequently Asked Questions

Why do electronic devices produce vibrations?

You must have noticed that many electronic devices produce vibrations.

This is due to the flow of charges in the electronic components and the other oscillatory parts used in the devices.

Why do two objects vibrate upon a collision?

Many objects vibrated upon hitting other rigid objects.

This depends on the modulus of elasticity of the two colliding objects, the kinetic and potential energy will be transformed into the vibrational energy.

Also Read:

31 Newton’s Third Law Of Motion Examples: Detailed Explanations

Newton’s third law of motion states that “Every action has an equal and opposite reaction.”

When one object exerts a force on another object, the reaction force equal in magnitude but opposite in direction is felt on the body of the object applying the force. Here is a list of Newton’s third law of motion examples that we are going to discuss in this topic:-

Riding Horse

The horse rides using its muscular force which is felt on the horse rider’s body.

As more muscular force is utilized by the horse, the horse rider is pushed in the upward direction due to the reaction force.

Trigger the Bullet

On pulling the trigger the force is incident on the bullet that accelerates the bullet in the forward direction. At the same time, the reaction force is exerted backward creating the impact force on the hand.

Bouncing Ball

As the ball bounces on the ground, the potential energy of the ball is again converted into kinetic energy due to the reaction force equal in magnitude felt on the ball by the ground as it imposes the force on the ground.

Hence, the ball bounces till the force applied by the ball on the ground becomes zero.

American Handball

A ball is thrown on the wall and it bounces back. The ball exerts a force on a wall and the equal force is felt on the ball that pushes it back.

Tennis Racket

As the tennis ball strikes the net of the racket, the force exerted on the racket is also felt on the hand, but the reaction force applied by the hand is greater than the ball to throw the ball in the forward direction.

Drawing Water from Well

A pulley is used to draw the water from the well that changes the direction of the force applied thus reducing the effort of muscular force required. The force is applied to pull the rope in a downward direction, the bucket moves in an upward direction.

Balancing Scale

On putting a weight in one pan of the weight measuring scale, it moves downward while the other pan of the scale moves in an upward direction.

The direction of the force applied on the pan which is full is downward and the reaction force on the other pan is in the upward direction.

Swimmer

A swimmer in a pull pushes his body to accelerate by touching his feet on the wall of a pool.

The greater the force applied on a wall, the more he will push his body forward to get a speed in the water.

Rocket Launch

To lift the weight of a body from the surface of the Earth a thrust is generated. This thrust must be enough the lift the rocket away from the Earth’s atmosphere sufficiently to cancel the gravitational pull of the Earth.

The action is the acceleration of the rocket while the reaction force is a trust applied on the ground.

Whistle Balloon

The whistle sound is heard as the air escapes from the balloon. If the air is escaping towards the ground, the balloon will move in the upward direction. In the end, when the volume of air left in the balloon is less, the direction of the path of the balloon is changed rigorously as its center of gravity varies.

Accident

The two fast moving cars when hit on each other, the cars will impose a force on each other, in response to it, both the cars will jerk back due to the equal reaction force acting on both the cars. The kinetic energy of the cars will be nullified and come to a rest.

Walking

While walking we actually apply a force on one foot while simultaneously lifting the other leg forward.

Newton’s third law makes it possible for us to walk. It is also true that the frictional force plays a vital role. The frictional force is applied on the foot while walking that holds up our foot in the place.

Drone

To lift the drone model, the trust is applied on the ground and the change in speed and direction is handled by the amount of voltage supplied to each motor of the drone by controlling it remotely.

The trust applied downward makes it possible to fly the drone in the air.

Stepping on Land from the Boat

While landing out from the boat, you apply a force on the floor of a boat that is still in a boat to push your body forward to step on the ground. The reactive force pushes the boat in the backward direction.

Skiing

To push the body forward, the skier applied the force in the backward direction with the help of a stick in his hand.

Hence, to come to a rest the skier has to apply the force in the forwarding direction to resist the motion of the skiing board.

Throwing a Stone into the Water

Upon throwing the stone in the water, the water will be thrown upward due to the impact that the stone creates on the water.

Gravitational Force between Earth and Moon

The gravitational force exerted on the Earth by the Moon is equal to the gravitational force exerted by the Earth on the Moon.

The gravitational force is the force due to gravity between each object which is equal in magnitude and opposite in direction

Magnetic Force between Two Bar Magnets

Each bar magnet exerts equal and opposite magnetic force on each other. As the distance between the two increases the magnetic force between the two decreases whether it is an attractive force or a repulsive force.

Catching the Ball

You must have observed that the fielder on a cricket ground pulls his hands a little down while catching the ball.

This is to reduce the force imposing on the hand as the ball falls from the height and also to minimize the equal and opposite force that might cause the ball to bounce back from the hand.

Boxer Punching on a Sandbag

The equal force is felt on the hand of a boxer punching on a sandbag and hence it is diverted towards the boxer.

Hammering

While hammering a nail, as you put a force on a nail the reaction force in response will be felt on the hammer and thus it lifts up.

The frictional force is created due to the hammering which generates the heat energy and even the radiant energy if the frictional force is large enough.

Row the Boat

To row the boat forward, you push the water backward.

You applied the force backward and in response, the force is exerted on the boat to push it in the forward direction.

Pushing the Object

Suppose you are pushing the heavy load by applying the push force in the forward direction then at the same time the restive force in the form of a frictional force is acting on the surface of the object that is in contact with another surface acting backward direction.

Newton’s Cradle

The force applied on the stationary bob from one bob of the cradle at one end transfers the momentum to the rest of the bobs, lifting the bob at another end of the cradle.

The reaction force is felt from this same bob in the opposite direction lifting the bob on the first end of the cradle back into the air and the process continues till the bobs are bought to the rest.

Magma Formation

The surface of the Earth’s crust that submerges beneath the crust is converted into magma back again under great pressure and temperature conditions.

Frictional Force on the Tire of a Car

The force that controls the motion of a car and prevents it from slipping is frictional force.

As the car accelerates the frictional force is exerted on the tires of a car in the opposite direction. The frictional force is in correspondence with the mass and the acceleration of a car.

Pulling a Rubber Belt

Upon pulling the rubber belt tying on the waist, the elastic potential force will be generated in the belt that will backward of your motion.

At a distance where the potential energy built in a belt becomes large, it will pull you back with a great force.

Spring

If you put a force on the spring by pressing it, the spring potential energy is built up in a spring that is converted into kinetic energy upon releasing the pressure by acting the reaction force in the opposite direction.

Trampoline

The force that you put while jumping on the trampoline will put an equal force on your body throwing your body in the opposite direction upward.

The force is exerted due to the elastic surface of the trampoline. The higher you jump more force will be imposed on the trampoline and the higher will your body will be raised in the air.

Jumping

While jumping you apply the force on the ground by your feet to push your body up. This generates an equal and opposite reaction.

Fruit Fell from the Tree

The fruit falling towards the ground possesses gravitational potential energy that is converted into kinetic energy.

As the fruit dashes the ground it bounces back due to the reaction force exerted on the fruit by the ground.

Tug of War

In the game of tug of war, the players from both sides apply the force in response to the opposition forces.

The force applied by the player is in the direction opposite to the force applied by the opponent. Due to this, the tensional force is generated in the rope.

Frequently Asked Questions

What is conserved in the application of Newton’s third law of motion?

The reaction force exerted on the body is equal in magnitude.

The momentum of the object is conserved when the object imposes a force on the other object.

Do books kept on the tables follows Newton’s third law?

The stack of books applies a force on the table.

The direction of the force by the books on the table is acting downward while an equal amount of force is exerted on the books by the table in the upward direction to resist the force by the book.

How does the bow apply Newton’s third law?

The bowstring is pulled backward doing thus built potential energy in the string.

Upon releasing the string, the force is imposed on the arrow that gives the energy to the arrow to accelerate.

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15 Two Dimensional Motion Examples: Detailed Explanations

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If the motion of the object is in the two dimensions then it is said to be two dimensional motion.

The rate of velocity of the objects in two dimensional motions is measured in two different components by calculating the rate of change of position in two dimensions. Here is a list of two dimensional motion examples that we are going to discuss here below:-

Football Kicked in the Air

On kicking the football, it drifts high up in the air in the projectile motion.

The motion of the ball is vertically as well as horizontally which is in two dimensions. The ball will cover the maximum distance if it is kicked at a 45-degree angle.

Swing

The swing oscillates to and fro motion. The swing is at a maximum height above the ground when it reaches the two endpoints from the point of the rest position.

Hence the motion of a swing is in horizontal as well as vertical motion.

Waterfall

The volume of water moves in a linear motion, till it reaches the cliff and then takes a parabolic curvilinear motion while changing the direction of its motion and falling vertically downward.

Here, the water moves in two dimensions to make a fall in the basin.

Slider

While sliding on a slider, the motion of the body is in a forward direction as well as downward reducing the height of the body above the ground.

The potential energy acquired by the body raised at a height is converted into kinetic energy. The body tends to remain in the state of motion until the opposite force is exerted on the body by the ground.

Airplane Taking a Flight

The airplane moves at an angle of 45 degrees with the ground initially while taking a flight in the air.

The motion of the airplane is in the forward direction as well as vertically moving up in the air. Enough trust is created on the ground to lift the weight of the plane in the air.

Passing the Ball

While passing the ball to the other player, you drive the ball in the parabolic motion in the air.

The ball moves to convert its kinetic energy into potential energy and attains the maximum potential energy on reaching the highest point in the air. From this point, the ball moves with a horizontal velocity for some distance and then accelerates down by converting potential energy into kinetic energy.

Object in a Circular Motion

Any object accelerating in a circular motion exerts a centripetal force that pulls the object inward. On contrary, the centrifugal force acting on the object is pushing the object in the outward direction. Both these forces help the object to move in a circular path.

The acceleration of the ball is in the forwarding direction but the force pulling the ball in the inward direction makes the circular path trajectory of the ball and hence the motion of the object moving in a circular path is a two dimensional motion.

Long Jump

A player runs for some distance and takes a high leap in the air by applying the force on the ground using her feet.

The equivalent force acting on her body helps her to take a long jump moving in a parabolic path and to cover the maximum distance possible in a leap.

Missile Launcher

As the missile is ignited from the launcher, it moves in a parabolic path towards the target.

The distance at which the missile has to make its fall is adjusted by measuring the angle whereupon releasing it at a corresponding angle will make a throw at the right target area. 

Car Climbing on a Hill

A car accelerating on a hill moves in a forward direction as well as with the increasing height of the Car above the plane surface in the vertical direction. The motion of the car is in two directions.

An Object Dropped from the Running Vehicle

When you drop any light-weighted object from the running vehicle, the airflow will drag the object a little backward before it settles on the surface of the ground. If the mass of the object was heavy then it would have directly dumped on the surface but for the observer in the car, it would have appeared that the object has moved backward.

Taking a Leap in a Swimming Pool

A swimmer diving into the swimming pool water takes a leap from the height.

Upon taking a jump the body of the swimmer moves a little forward before accelerating his body vertically downward due to the force of gravity.

Hot Air Balloon Coming Down

As the hot air balloon comes down towards the ground from its flight, it moves in an inclined path in the air.

Hence the motion of the hot air balloon is a two dimensional motion example.

Volleyball

As the player gives a throw to the ball, it moves in a parabolic path.

The ball is accelerated upward and also moves in a forward direction.

Taking a Jump to Cross the Barrier

While taking a jump you apply pressure on your feet to generate the reaction force from the ground to push your body upward to benefit you to take the longest leap to cross the barrier.

Frequently Asked Questions

A swimmer taking a leap in a pool standing at a height of 5 meters above the ground and the velocity of the body was 4m/s then how far the distance will he cover from the base?

Given: v=4m/s

h=5m

x=ut+1/2at2

Since the acceleration and the displacement of the body is in the negative y-axis,

x= -5m

a= -9.8 m/s2

u=0

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Hence horizontal displacement is

x=vt=4*1.009=4.04m/s2

Which types of motion are two dimensional motions?

If the motion of the object is in two directions it is said to be moving in two dimensions.

The object moving in a projectile motion, centripetal motion, or on the inclined plane, the object possesses two dimensional motion.

Please click to read more on 20+ one dimensional motion examples.

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19 Passive Range Of Motion Examples: Detailed Explanations

Passive range of motion is the space in which a part of our body can move when someone is creating the movement. Passive range of motion is commonly used in the fitness and passive range of rehabilitation circles. Passive range of motion exercises is done 2-3 times a day.

Passive range of motion is defined as “what is accomplished although an external force, such as a psychologist, conviction fluctuation of a joint. It is generally the highest range of motion”. Passive ranges of motion are exertion sketches to expand the variation in a joint by meticulously stretching muscles and tendons. This post gives you a detailed explanation of such passive range of motion examples

Forearm pronation

Elbow extension

Internal or external hip rotation

Hip abduction

Foot dorsiflexion

Flexing the fingers

Stretching and moving of the arms

Passive range of motion in hand

Passive range of motion in wrist

Lower extremity

Stretching a joints

Ankle rotation

Rehabilitation

Stretching skeletal muscles

Shoulder passive range of motion

Knee passive range of motion

Neck rotation

Spine passive range of motion

Hip passive range of motion

Elbow bends

Passive range of motion of the upper extremity

Forearm pronation

Elbow flex the 90 degrees in forearm fully supinated assess the available passive range of motion stabilize the intro lateral aspects of femur palpate the pronator carries from the proximal third of the anterior floor on applying increasing resistance to the palmar surface of the radius dorsal service in the direction of supination.

Elbow extension

Shoulder flex to 90degree the elbow fully flexed and the forearm fully supinated assess the available passive range of motion stabilize the lateral shoulder and palpate the triceps muscle bring the arm back into slight elbow flexion.

Internal or external hip rotation

We can apply from extended knee position place one hand approximately leaning joint and one hand approximate to the ankle joint now we need to roll inside into internal rotation and outside into same rotation, so the heel and external rotation on thigh heel out the internal position of the left joint.

Hip abduction

This exercise improves the strength of your knee, we will lay on our side and raise the knee to ensure that your hips do not roll backward keep them stacked on top of one another perpendicular to the surface then feel most of the burn in the hip.

Foot dorsiflexion

 During dorsiflexion, the back or upper side of the foot moves towards the shin decreasing the angle between these two surfaces leaving the toes pointing a little bit closer to the head when we walk on heels only we dorsiflexion the foot.

Flexing the fingers

While finger flexing the patient palm facing upwards and the examiner put the fingers on the patient finger and taps on the finger there is a brisk flexion of the fingers which is a passive range of motion.

Stretching and moving of the arms

In the forearm stretch, the flexors and extensors in the forearm get overused in the gym and this puts pressure on the elbow so for the extensor stretch we are going to put our arm straight in front of us elbow locked out palm facing down due to passive range of motion.

Passive range of motion in hand

The person’s hand resting on the bench starts with extension and flexion with one hand grabbing the distal forearm taking the hand and bringing it into extension and for flexion the opposite this is nothing but a passive range of motion.

Passive range of motion in wrist

Examine the wrist flexion and extension the person is in the sitting position with the elbow propped up on the bench and the forearm and supination fixate the forearm in one hand and then maximally flex the wrist and asses the end field for extension the position is the same and maximally extend the wrist.

Lower extremity

First, use the leg so we’re going to do flexion-extension then abduction which is away from abduction so next will be a rotation of the leg in clockwise motion then counterclockwise.

Stretching a joints

We have to make the left leg up and then going to put our hands on our leg and we’re going to have the other down we can put a little roll underneath and use our hip flexors on one side and hamstrings on the other side and stretching up-down relief the joint pain.

Ankle rotation

We have to look at the passive range of motion of the ankle into dorsiflexion pull the ankle into full dorsiflexion grab onto the ankle and move it into plantar flexion for inversion fixate the tibia and then grab the ankle from the outside let it move inwards this is how in the ankle rotation we can see the passive range of motion.

Rehabilitation

Just bending forward like you are going to touch your toes and coming up, facilitate recovery optimize movement improve function, and manage pain this includes the rehabilitation of a passive range of motion.

Stretching skeletal muscles

Keep the knees extended and we’ll be flexing the foot try to feel the stretch of the bottom of the leg and push the foot end and pull the calcaneal up then the patient goes to mobile with fingers so hold the stretch for about 30seconds.

Shoulder passive range of motion

You can take the solid broom in one hand and do the motion and the hands just go along for the ride another hand is lifting it is getting lifted by the solid broom going up-down eventually we’ll get to go higher and higher up then shoulder abduction which is a passive range of motion.

Knee passive range of motion

For flexion you have it in a supine position then grab onto the leg above the ankle you may also use your other hand to palpate the joint line and then bring the foot as far as possible to the knees.

Neck rotation

Neck and trunk frequently the muscles on the front of the neck are tighter from the head leaning forward due to the weakness stretching the muscles on the front of the neck and hold the head in the hands up to 20-30second then the head is getting heavy.

Spine passive range of motion

The rotation occurs from the upper or cervical spine, handling is to be web-like cradling so for the movement we’re going to be drawing the patient’s head from the neutral position with cervical pain flexion.

Hip passive range of motion

To conduct passive-range-of-motion in the direction of abduction make sure to support the leg and to keep it straight to prevent any rotation in the hip while doing abduction also fixate the pelvis and move the leg outwards as far as possible and cross the leg over the other.

Elbow bends

For extension just grab the arm extended fully and asses the end field then for bending bend it fully and asses the end field to test flexion passively take the patient elbow from a completely extended position to a completely flexed position.

Passive range of motion of the upper extremity

Start with scapular movement cradle patient’s arm with our hand closest to their feet and top hand is going to suction cup on to their scapula and do scapular elevation and depression make it for three times now retraction-protraction this is the process of how passive range of motion works on the upper extremity.

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29+ Projectile Motion Examples: Detailed Explanation

Projectile motion is the motion of an object spit up in the air at an inclination from the flush with an object moving under gravitational acceleration spear-like perpendicular. Projectile motion is usually calculated by neglecting air resistance.

Projectile motion is defined as “motion accomplished by an object that is projected just about the outermost level of the land and runs along a meander under the action of gravity only. Oblique projectile motion, horizontal projectile motion, and projectile motion in an inclined plane all are types of projectile motion. Projectile motion is a two-dimensional motion.

This post gives you a detailed explanation of such projectile motion example

  1. Firing a canon
  2. Throwing a basketball
  3. Sneezing
  4. Javelin throw
  5. Archery
  6. Water escaping a hose
  7. Car and bike stunts
  8. Golf ball
  9. Disc throw
  10. Gun fire
  11. Tossing a ball
  12. Launching a paper ball from a slingshot
  13. Baseball hit by a batter
  14. Throw a cricket ball
  15. Throw a stone in a river
  16. An angry bird
  17. Football or bullet
  18. An arrow shot from bow
  19. A dart shot from a blowgun
  20. A stone launched by a slingshot
  21. Thrown a soft ball
  22. A hit tennis ball
  23. A served volleyball
  24.  Throwing a ball from a certain height
  25. Table tennis
  26. A jet of water flowing through pipe in upward direction
  27. Propulsion of rocket and missile
  28. Rotation of the earth
  29. Flipping a coin
  30. Part of the conic section
  31. Mid-air collision of two particles

Firing a canon

Before firing a canon the momentum of the system was equal to zero the fire of a cannonball is equivalent to the activity of internal forces in the system after the shot the momentum and vectors of the elements of the system are in the opposite direction the lengths of the vectors are identical this means that their sum remains equal to zero.

Throwing a basketball

We are all known how the ball moves into the basket when it’s shot including positioning yourself well preparing the shot and shooting at the basket first pointing upwards experiencing projectile motion.

Sneezing

Sneeze spread germs tiny droplets can go very far when we are sneezing and germs can travel when someone sneeze droplet flies out in slow motion and exhibit projectile motion.

Javelin throw

Javelin is a spear-like structure with their bare hands with a maximum force so that it will land within a prescribed marking area which is nothing but projectile motion.

Archery

When a bowman tow an arrow and let-go in the air in a peculiar corner the arrow start throughout the x-y axis coexist so the parabolic avenue attack by the arrow to start ahead can be unearthed effortlessly, it demonstrates projectile motion.

Water escaping a hose

 The hosepipe is connected to the water tap and gently connected to the shower hose then water escaping out of a hose imitates a projectile motion because in nature water is parabolic.

Car and bike stunts

Stuntman performing a stunt on that time he increasing height above the ground and also increasing horizontal and vertical launch speed this is because of projectile motion.

Golf ball

The object of a golf ball game is to get our ball from the starting point into the hole while the ball entered the hole it follows both horizontal and vertical motion helps in observing the projectile motion.

Disc throw

In this game, the athlete is required to throw discs of 1-2gm into the air as far as possible this is rather it furnishes the disc with horizontal and vertical velocity giving the projectile motion which is necessary for throwing the disc.

Tossing a ball

 Toss up and catch the ball so the goal is that the ball is going to travel from a horizontal or vertical direction a little bit hitting the shoulder because of projectile motion.

Launching a paper ball from a slingshot

Slingshot is lightweight versatile and nearly silent when fired making it ideal for a survival situation small paper ball to load slingshot then fired it follows horizontal or vertical motion experiencing projectile motion.

Baseball hit by a batter

Baseball is a team sport played on a diamond-shaped playing field batter manages to hit the ball from the pitcher each base must be touched by some part of the batter’s body due to projectile motion.

Throw a cricket ball

Throwing over our underarm and sidearm grip its cross seam with your first two fingers on top and thumb at the bottom so it doesn’t swing in the air and position the target hit the cricket ball experiencing projectile motion.

Throw a stone in a river

 The thrown stone flump into water fabricates gesture and circle because it thrust water elsewhere of the method building a wrinkle that progress over from where it landed this process is due to projectile motion.

An angry bird

Whenever the angry bird is projected in the gravitational force, under the influence of gravitational force then horizontal motion is converted into projectile motion.

Football or bullet

With more than a thousand punts when you make contact with that ball it’s almost a feeling that you don’t feel the ball on your foot it’s almost like you’re swinging your leg in the air when the ball comes off there perfectly because of projectile motion.

An arrow shot from bow

Arrow has little space in between clip that right onto the bowstring so you hit back stretch an arrow if pull low we will shoot high then arrow reach an anchor point due to projectile-motion.

A dart shot from a blowgun

First, let us consider the target and that’s 9m away horizontally if somebody writes that down shoot the blowgun in faster you go sideways the less gravity can’t get you due to projectile motion.

A stone launched by a slingshot

When we put the stone into the pouch of a slingshot as we draw we can have unequal tension on our hand that’s going to cause one band to accelerate the other this is due to projectile motion.

Throw a soft ball

Grip the four-seam grip is the easiest grip it offers you the most control over the softball and it will provide more spin on the softball resulting in higher velocity experiencing projectile motion.

 A hit tennis ball

As we pull the ball on the ground we will start orienting towards the target and our swing is also towards the target when we hit the ball want to orient towards the ball and not towards the target so it needs projectile motion.

A served volleyball

As we served the ball forms a parabola which is the volleyball is the projectile in every here there is always acceleration due to gravity always makes the volleyball in a parabola motion hence a served volleyball is projectile motion.

 Throwing a ball from a certain height

The elevated level of rescue the sizeable separation offset in flight. This is because the elevated the projectile is free, the extensive free in the air. The horizontal element will be reserved on the projectile for prolonged.

Table tennis

In table tennis, there are two components to it horizontal and vertical and they are influenced by air resistance and gravity respectively projectile motion could be affected by the height at which we hit the ball and the angle at our harm due to projectile motion.

A jet of water flowing through pipe in upward direction

The water run from a pipe in an estate reveals an estimated parabolic shape. Although some divergence from the absolute flight path may be observed, due to the tugging force.

Propulsion of rocket and missile

A rocket can propel itself upward by shooting that matter beneath it so as it propels itself in space it has to shoot out gas particles underneath it and so that’s going to cause the rocket to accelerate upward it can also move in the x-direction this is due to projectile-motion.

Rotation of the earth

Earth rotates anticlockwise as contemplated from the northward hence the projectile is canned from the northward because of projectile motion.

Flipping a coin

Consider two coins and place one coin on the right edge of the table so it’s teetering and pacing other coin is flip it with our finger so the first one is dropped from the table and the second is projected off the table both the coins fall at the same rate because both are influenced by the acceleration due to gravity.

part of the conic section

 When we draw a cone and cut it with a plane parallel to one of the edges of the cone then we get a parabola if there is no friction then undergoing uniform horizontal motion which turns to projectile motion.

Mid-air collision of two projectiles

The collision between two projectiles was initiated without vertical separation and horizontal separation and also from different horizontal-vertical separations. Suppose if we have two projectiles when they collide with each other they have a trajectory for both projectiles both trajectories intercept each other because of projectile motion.

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17+ State Of Motion Examples: Detailed Explanations

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The object being in its motion due to the applied force is said to be in a state of motion.

It certainly means that the object is doing some work and is not in its state of rest. The object is moving with a certain velocity in a particular direction of the force applied. The following is a list of state of motion examples that we are going to discuss in this topic:-

Bouncing Ball

The bouncing ball is in a continuous motion moving up and down the ground varying its kinetic and potential energy.

The potential energy of a ball is high when it is raised to the greatest point of its height during bouncing. This potential is converted into kinetic energy and potential energy is the minimum when the ball reaches the ground surface. The ball keeps on bouncing till the energy of the ball becomes zero.

Airplane

The airplane is in a state of motion high in the airways. While taking a flight, the airplane makes enough thrust on the ground to lift its body upward. Here Newton’s third law of motion comes into the picture.

Running

This is also a state of motion and the speed of the person running can be calculated by measuring the distance he covers in a given time.

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Running; Image Credit: pixabay

For running, a person uses a muscular force, and the stored chemical potential energy is converted into kinetic energy while running.

Pulling a Cart

A bull pulling a cart is in a state of motion. The bull applies the muscular force to pull the cart.

In old days bull carts were used to migrate and carry away the load. The force applied by the bull to pull the cart is equal to the acceleration of the cart and the sum of the mass of the cart and the weight loaded on a cart.

Swing

A swing is displaced to a certain angle of oscillation from its resting position to set it in a state of motion.

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Swinging; Image Credit: Pixabay

The relative velocity of a person sitting stable on the swing is the speed of a swing. The angle of oscillation of the swing decreases at every oscillation if no more external force is applied to the swing.

Spinning Top

On giving a spin to the top, it is set into a state of spinning motion. The gyration of the spinning top is in relation to the angle made with the axis of rotation. This angle increases as the point of the gravity due to the moment of inertia of the top diverge away from the symmetrical axis.

Pulley

While drawing water from the well, the frictional force applied on the surface of the pulley by the rope sets the pulley in the state of motion and it accelerates at a rate equal to the rate of pulling the rope.

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Pulley; Image Credit: Pixabay

The pulley helps in reducing the efforts while drawing the water by changing the direction and amount of the force applied.

Satellites Around the Planet

The satellites are continuously rotating around the planet at a constant rate and at a fixed distance. The planet exerts a gravitational pull on the satellite and prevents them from escaping from its orbit of rotation.

Slider

A girl sliding or a slider is in a state of motion.

The sliders are made up of a plane and smooth surface. If the surfaces were rough then the girl would have not to slide due to the frictional force. The frictional force is more in the case of a rough surface.

Playing with Ring

While passing a ring, a ring is in a state of motion. The ring is thrown from one player to another by applying a force by moving a hand at an angle. The acceleration of a ring depends upon the amount of force at which it is thrown in the air.

Ferries Wheel

The ferries wheel is accelerating in a centripetal motion rotating at a fixed axis of rotation. The ferries wheel is accelerating it is said to be in a state of motion.

The potential energy acquired by the body of a passenger at the greatest point on a ferries wheel is the highest which is converted into kinetic energy. Hence while accelerating downward the person feels light in weight and while accelerating in the upward direction against the gravity, the person feels heavier in weight as more force is imposed on the body.

Grinding Coffee

To grind a coffee to a fine powder you rotate the churner.

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Coffee grinder; Image Credit: Pixabay

Hence while grinding the coffee your hands are in a state of cyclic motion.

Slinky Climbing down the Stairs

If you keep a sling on the stairs, it will automatically climb down the steps converting the potential energy into kinetic energy and kinetic energy back to potential energy. Due to the conservation of energy by the slinky this state of motion is possible.

Sawing

For sawing wood, you move your hand back and forth to penetrate the blade through the wood and cut the pieces into halves.

Hence your hands are in a state of motion while sawing.

Typing

While typing your fingers are in a state of motion. Every time you apply a push force to press the button on the keyboard and insert the keys digitally.

Fan

Upon supplying power to the electric fan, it will keep on rotating at a fixed rate.

The state of motion of the fan is defined as the centripetal motion rotating at a constant axis of rotation.

Driving a Car

A car is in a state of linear motion while driving. The energy is supplied to the car by the combustion of the diesel used in the tank of the car.

Frequently Asked Questions

Is skiing a state of motion?

The relative velocity of a skier with respect to the skiing board is zero.

While skiing the skier is in linear motion and not stable at one point and hence is in a state of motion.

Is standing in a queue a state of motion?

If there is no motion of an object and the object is at a rest then it is not the state of motion.

Standing in a queue without any activity implies there is no motion of a person and hence it is not a state of motion.

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