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2.5 Stopping and braking distances

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Question 14

A farm tractor is travelling at 16 m/s. Its driver takes 0.75 s to respond after detecting a fallen branch on the road ahead. The tractor has a mass of 1800 kg, and a constant resultant braking force of 7200 N acts once braking begins. How far ahead must the branch be, at the moment the driver detects it, so that the tractor just stops before reaching it?

[1]
A

76 m76\ \mathrm{m}76 m

B

12 m12\ \mathrm{m}12 m

C

32 m32\ \mathrm{m}32 m

D

44 m44\ \mathrm{m}44 m

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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