Kinetic Energy

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Work, Energy and Power Learning Material
Tutorial IDTitleTutorialVideo
5.2Kinetic Energy

Kinetic Energy Revision Questions

1. The Kinetic energy of a 2 kg rabbit running at constant velocity is 64 J. What is the rabbit's velocity?

  1. 6 m/s
  2. 8 m/s
  3. 16 m/s
  4. 4 m/s

Correct Answer: B

2. A 300 g ball rolling horizontally at 4 m/s stops after moving for 12 m. What is the average frictional force exerted on the ball?

  1. 0.2 N
  2. 1 N
  3. 5 N
  4. 28.8 N

Correct Answer: A

3. The velocity of a 4 kg object increases from 2 m/s to 10 m/s due to the action of a constantly increasing force. As a result, the object displaces by 20 m. What is the magnitude of the average force used?

  1. 0.4 N
  2. 9.6 N
  3. 10.0 N
  4. 10.4 N

Correct Answer: B

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  5. Continuing learning work, energy and power - read our next physics tutorial: Gravitational Potential Energy

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