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2 Motion and forces

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Question 39

A locomotive of mass 80 000 kg80\,000\ \mathrm{kg}80000 kg travels forwards along a straight, level track. Its speed increases uniformly from 12 m s−112\ \mathrm{m\,s^{-1}}12 ms−1 to 18 m s−118\ \mathrm{m\,s^{-1}}18 ms−1 in 15 s. The engine exerts a driving force of 50 000 N50\,000\ \mathrm{N}50000 N forwards. Resistive forces act backwards.

Calculate the total resistive force acting on the locomotive.

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2 Motion and forces Questions

  1. GCSE
  2. /Physics
  3. /2 Motion and forces

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