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2.5 Stopping and braking distances

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Question 75
H

A car of mass 1000 kg travels at 20 m/s. The driver’s reaction time is 0.50 s and a stationary obstacle is 35 m ahead when first seen. What is the minimum magnitude of a constant resultant braking force that would stop the car just at the obstacle?

[1]
A

8000 N8000\ \mathrm{N}8000 N

B

5700 N5700\ \mathrm{N}5700 N

C

6700 N6700\ \mathrm{N}6700 N

D

16000 N16000\ \mathrm{N}16000 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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