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8.1 Physics on the move

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Question 24
H

A car of mass 1200 kg is travelling at 20 m/s. The driver brakes and the car stops in a distance of 30 m.

What is the average braking force on the car?

[1]
A

8000 N8000\ \text{N}8000 N

B

800 N800\ \text{N}800 N

C

16 000 N16\,000\ \text{N}16000 N

D

240 000 N240\,000\ \text{N}240000 N

Markscheme

8.1 Physics on the move Questions

  1. GCSE
  2. /Physics
  3. /8.1 Physics on the move

50 exam-style questions on OCR GCSE Physics 8.1 Physics on the move, covering 8.1.1 Typical everyday speeds, 8.1.2 Typical everyday accelerations, 8.1.3 Ratios, units and rates on the road, 8.1.4 Human reaction times, 8.1.5 Factors affecting stopping distance, 8.1.6 Stopping distances at different speeds, 8.1.7 Dangers of large decelerations, 8.1.8 Estimating forces in road situations, and 8.1.9 Estimating the effects of large accelerations. Each one has a worked solution and a mark scheme showing where the marks go.

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