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Physics (AS & A Level) · May / June 2019 · Paper 12 · Question 10

9702Momentum and Newton’s laws of motion

A car has mass m. A person needs to push the car with force F in order to give the car acceleration a. The person needs to push the car with force 2F in order to give the car acceleration 3a. Which expression gives the constant resistive force opposing the motion of the car?

  1. Ama
  2. B2ma
  3. C3ma
  4. D4ma

As printed in the paper

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Correct answer: A. ma

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