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Physics (AS & A Level) · Feb / March 2016 · Paper 12 · Question 15

9702Energy conservation

The force diagram shows an aircraft accelerating. At the instant shown, the velocity of the aircraft is 40 m s–1. At which rate is its kinetic energy increasing?

  1. A2.4 MW
  2. B8.0 MW
  3. C12 MW
  4. D20 MW

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Correct answer: C. 12 MW

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