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2.5 Stopping and braking distances

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Question 73
H

A van of mass 1600 kg travels at 72 km/h. Its speed remains constant for a reaction time of 0.80 s, then it slows uniformly to rest in 4.0 s. Use 1 m/s=3.6 km/h1\ \mathrm{m/s}=3.6\ \mathrm{km/h}1 m/s=3.6 km/h. What are the stopping distance and the magnitude of the resultant force during braking?

[1]
A

96 m96\ \mathrm{m}96 m and 8000 N8000\ \mathrm{N}8000 N

B

56 m56\ \mathrm{m}56 m and 6400 N6400\ \mathrm{N}6400 N

C

56 m56\ \mathrm{m}56 m and 8000 N8000\ \mathrm{N}8000 N

D

96 m96\ \mathrm{m}96 m and 6400 N6400\ \mathrm{N}6400 N

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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