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3 Mechanics

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Question 182

A car is travelling along a straight road at 25 m s-1. The driver has a reaction time of 0.8 s, during which the car continues at constant speed. The brakes are then applied and the car decelerates uniformly at 5 m s-2 until it stops.

a.

Find the distance travelled during the reaction time.

[2]
b.

Find the distance travelled while the car is braking.

[2]
c.

Find the total stopping time and the total stopping distance.

[2]
Markscheme

3 Mechanics Questions

  1. A Level
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