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2.5 Stopping and braking distances

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Question 25

During a brake test on a closed track, a minibus is travelling at 15 m/s when its driver sees a warning light. The driver's reaction time is 0.80 s and the minibus comes to rest 42 m from the point where the driver saw the light. The resultant braking force is constant at 12000 N. What is the mass of the minibus?

[1]
A

3200 kg3200\ \mathrm{kg}3200 kg

B

2240 kg2240\ \mathrm{kg}2240 kg

C

4480 kg4480\ \mathrm{kg}4480 kg

D

1600 kg1600\ \mathrm{kg}1600 kg

Markscheme

2.5 Stopping and braking distances Questions

  1. GCSE
  2. /Physics
  3. /2.5 Stopping and braking distances

126 exam-style questions on Edexcel GCSE Physics 2.5 Stopping and braking distances, covering 2.5.1 Stopping distance and reaction time, 2.5.2 Factors affecting stopping distance, 2.5.3 Dangers of large decelerations, and 2.5.4 Braking distance and initial speed. Each one has a worked solution and a mark scheme showing where the marks go.

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