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Physics (AS & A Level) · Oct / Nov 2020 · Paper 11 · Question 10

9702Linear momentum and its conservation

The diagram shows the masses and velocities of two trolleys that are about to collide. After the impact they move off together. What is the kinetic energy lost in the collision?

  1. A4 J
  2. B6 J
  3. C12 J
  4. D14 J

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Correct answer: B. 6 J

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