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Physics · May / June 2017 · Paper 12 · Question 7

5054Balanced and unbalanced forces

A train of mass 240 000 kg is travelling at a speed of 60 m / s. The brakes are applied and it decelerates for 10 minutes until it comes to rest. What is the average resultant force?

  1. A24 000 N
  2. B40 000 N
  3. C480 000 N
  4. D720 000 N

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Correct answer: A. 24 000 N

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