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8.3 Power and efficiency

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Question 14

An electric towing vehicle moves equipment across a warehouse floor for 18 s. Its input power is 2.0 kW and its mean power dissipation is 500 W. The vehicle exerts a constant driving force of 900 N in the direction of motion. What distance does the vehicle travel?

[1]
A

50 m50\ \mathrm{m}50 m

B

10 m10\ \mathrm{m}10 m

C

30 m30\ \mathrm{m}30 m

D

40 m40\ \mathrm{m}40 m

Markscheme

8.3 Power and efficiency Questions

  1. GCSE
  2. /Physics
  3. /8.3 Power and efficiency

128 exam-style questions on Edexcel GCSE Physics 8.3 Power and efficiency, covering 8.3.1 Power and 8.3.2 Efficiency. Each one has a worked solution and a mark scheme showing where the marks go.

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