FRICTION AND BRAKING
2 marks · EasyA car is travelling at 60 mph. The thinking distance is 18 m and the braking distance is 55 m. Calculate the total stopping distance.
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73 m (±0)
Common mistakes: Subtracting instead of adding.
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Marking points
M1 · 1 mark · Adds thinking and braking distance together correctly.
A1 · 1 mark · Gives correct final answer: 73 m.
Worked solution
Total stopping distance = thinking distance + braking distance = 18 m + 55 m = 73 m.