3. A ball is dropped from a window, and bounces three times. The first bounce is 1 meter high. The second bounce is meter high. The third bounce is 7 centimeters high. The ball then rolls and comes to a stop. What has happened to the energy of the ball when it has come to a stop? A. The potential energy in the ball decreased. B. The kinetic energy of the ball increased. C. The potential energy is transformed to kinetic energy. D. As the energy of the ball is transferred, the potential energy increases.
Kinematics
A machine is a device that accepts energy in some available form and utilizes it to do a type of work. Energy, work, or power has to be transferred from one mechanical part to another to run a machine. While the transfer of energy between two machine parts, those two parts experience a relative motion with each other. Studying such relative motions is termed kinematics.
Kinetic Energy and Work-Energy Theorem
In physics, work is the product of the net force in direction of the displacement and the magnitude of this displacement or it can also be defined as the energy transfer of an object when it is moved for a distance due to the forces acting on it in the direction of displacement and perpendicular to the displacement which is called the normal force. Energy is the capacity of any object doing work. The SI unit of work is joule and energy is Joule. This principle follows the second law of Newton's law of motion where the net force causes the acceleration of an object. The force of gravity which is downward force and the normal force acting on an object which is perpendicular to the object are equal in magnitude but opposite to the direction, so while determining the net force, these two components cancel out. The net force is the horizontal component of the force and in our explanation, we consider everything as frictionless surface since friction should also be calculated while called the work-energy component of the object. The two most basics of energy classification are potential energy and kinetic energy. There are various kinds of kinetic energy like chemical, mechanical, thermal, nuclear, electrical, radiant energy, and so on. The work is done when there is a change in energy and it mainly depends on the application of force and movement of the object. Let us say how much work is needed to lift a 5kg ball 5m high. Work is mathematically represented as Force ×Displacement. So it will be 5kg times the gravitational constant on earth and the distance moved by the object. Wnet=Fnet times Displacement.
23. A ball is dropped from a window, and bounces three times. The first bounce is 1 meter high. The second bounce is meter high. The third bounce is 7 centimeters high. The ball then rolls and comes to a stop.
What has happened to the energy of the ball when it has come to a stop?
A. The potential energy in the ball decreased.
B. The kinetic energy of the ball increased.
C. The potential energy is transformed to kinetic energy.
D. As the energy of the ball is transferred, the potential energy increases.
![### Energy Transformation in a Bouncing Ball
**Text:**
23. A ball is dropped from a window, and bounces three times. The first bounce is 1 meter high. The second bounce is \( \frac{1}{2} \) meter high. The third bounce is 7 centimeters high. The ball then rolls and comes to a stop.
**Diagram Explanation:**
The diagram illustrates the sequence of events when a ball is dropped from a height of 3 meters out of a window. It shows:
- **Bounce 1:** After being dropped, the ball rebounds to a height of 1 meter.
- **Bounce 2:** Subsequent to the first bounce, the ball achieves a height of 0.5 meters.
- **Bounce 3:** The height reached after the third bounce is 7 centimeters.
- Finally, the ball rolls and comes to a stop at ground level.
The diagram is set against the backdrop of a brick wall, a window, and a plant, indicating a typical urban environment.
**Question:**
What has happened to the energy of the ball when it has come to a stop?
**Options:**
A. The potential energy in the ball decreased.
B. The kinetic energy of the ball increased.
C. The potential energy is transformed to kinetic energy.
D. As the energy of the ball is transferred, the potential energy increases.
---
This graphical example serves as an illustration of energy transformation, particularly focusing on the transition between potential and kinetic energy as the ball loses height and eventually stops.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6f0a8c67-ba07-4933-95fd-7d397a6626d9%2F4684cae6-5c6b-491a-adbc-65f9804e8abc%2Fohm2jn8_processed.png&w=3840&q=75)
![**Image Description for Educational Website:**
**Text:**
23. A ball is dropped from a window, and bounces three times. The first bounce is 1 meter high. The second bounce is \(\frac{1}{2}\) meter high. The third bounce is 7 centimeters high. The ball then rolls and comes to a stop.
**Diagram:**
The diagram illustrates the motion of a ball dropped from a window. It shows:
- A person releasing a ball from a window that is indicated to be 3 meters high.
- The ball makes its first bounce, reaching a height of 1 meter.
- The ball then makes a second bounce, reaching a height of 0.5 meters (labeled as 2 meters by error).
- The third bounce reaches a height of 7 centimeters.
- After the third bounce, the ball stops rolling.
**Question:**
What has happened to the energy of the ball when it has come to a stop?
- A. The potential energy in the ball decreased.
- B. The kinetic energy of the ball increased.
- C. The potential energy is transformed to kinetic energy.
- D. As the energy of the ball is transferred, the potential energy increases.
**Explanation:**
This illustration is useful for understanding the conservation of energy in the context of gravity and mechanical energy transformations during bouncing and rolling motions.](/v2/_next/image?url=https%3A%2F%2Fcontent.bartleby.com%2Fqna-images%2Fquestion%2F6f0a8c67-ba07-4933-95fd-7d397a6626d9%2F4684cae6-5c6b-491a-adbc-65f9804e8abc%2Fua2ornd_processed.png&w=3840&q=75)
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