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Physics (AS & A Level) · May / June 2022 · Paper 11 · Question 16

9702Energy conservation

A box slides down a rough ramp. The change in the gravitational potential energy of the box is 16 J as it moves between positions X and Y. The box has 24 J of kinetic energy at X and 35 J of kinetic energy at Y. How much work is done against the frictional force?

  1. A5 J
  2. B19 J
  3. C27 J
  4. D43 J

As printed in the paper

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Correct answer: A. 5 J

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