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2 Motion and forces

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Question 126
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

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2 Motion and forces Questions

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

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