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2 Motion and forces

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Question 63

During a braking test, a delivery van travels 46 m from the moment its driver sees a hazard until it comes to rest. The thinking distance is 10 m. When the brakes are first applied, the van has 180 kJ of kinetic energy. The brakes do the same amount of work for each metre the van travels while braking. How much work do the brakes do per metre?

[1]
A

5000 J/m5000\ \mathrm{J/m}5000 J/m

B

18000 J/m18000\ \mathrm{J/m}18000 J/m

C

5 J/m5\ \mathrm{J/m}5 J/m

D

3913 J/m3913\ \mathrm{J/m}3913 J/m

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2 Motion and forces Questions

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

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