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2 Motion and forces

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Question 25

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

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2 Motion and forces Questions

  1. GCSE
  2. /Physics
  3. /2 Motion and forces

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