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2 Motion and forces

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Question 58

A cyclist does two braking tests on the same bicycle. The total mass of the cyclist and bicycle is the same in both tests.

The table shows the results of the first test.

QuantityFirst test
Speed8 m/s
Thinking distance6 m
Braking distance12 m

In the second test, the cyclist travels at 10 m/s. The road is wet, so the braking force is 0.75 times the braking force in the first test. The cyclist is tired, so their reaction time is twice as long as in the first test.

Calculate the stopping distance in the second test.

[3]
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2 Motion and forces Questions

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

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