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2.5 Stopping and braking distances

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Question 59
F

A car travels at 20 m/s. Its braking distance is 30 m. The driver first sees a stationary obstacle 50 m ahead. What is the greatest reaction time that would allow the car to stop just at the obstacle?

[1]
A

1.5 s1.5\ \mathrm{s}1.5 s

B

1.0 s1.0\ \mathrm{s}1.0 s

C

2.5 s2.5\ \mathrm{s}2.5 s

D

4.0 s4.0\ \mathrm{s}4.0 s

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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