Physics 9702 · AS & A Level · Momentum and Newton's laws of motion

Momentum and Newton's laws of motion — practice question

Car X is moving at half the speed of car Y. The mass of car X is twice the mass of car Y. Which statement is the correct one?

  • ACar X has half the kinetic energy of car Y.
  • BCar X has one quarter of the kinetic energy of car Y.
  • CCar X has twice the kinetic energy of car Y.
  • DThe two cars have the same kinetic energy.

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