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7.1 Work done

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Question 24
H

A car of mass 1000 kg is travelling at 20 m/s. The driver brakes and the car stops.

The braking force is constant at 8000 N.

What is the braking distance of the car?

[1]
A

2.5 m2.5\ \text{m}2.5 m

B

12.5 m12.5\ \text{m}12.5 m

C

25 m25\ \text{m}25 m

D

50 m50\ \text{m}50 m

Markscheme

7.1 Work done Questions

  1. GCSE
  2. /Physics
  3. /7.1 Work done

44 exam-style questions on OCR GCSE Physics 7.1 Work done, covering 7.1.1 Conservation of energy in a closed system, 7.1.2 Energy stores and transfers, 7.1.3 Energy changes by heating, forces and current, 7.1.4 Quantifying energy transfers in a system, and 7.1.5 Kinetic, elastic and gravitational potential energy. Each one has a worked solution and a mark scheme showing where the marks go.

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