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2 Motion and forces

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Question 26

During a braking trial, a driver sees a warning light while a snowplough of mass 5000 kg is moving at 10 m/s. The mean resultant force on the snowplough after the brakes are applied is 25 000 N25\,000\ \mathrm{N}25000 N. The snowplough comes to rest 2.7 s after the warning light appears. What is the driver's reaction time?

[1]
A

0.70 s0.70\ \mathrm{s}0.70 s

B

2.0 s2.0\ \mathrm{s}2.0 s

C

2.7 s2.7\ \mathrm{s}2.7 s

D

0.50 s0.50\ \mathrm{s}0.50 s

Markscheme

2 Motion and forces Questions

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

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