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Physics (AS & A Level) · Oct / Nov 2025 · Paper 12 · Question 20

9702Energy conservation

The motor of a crane lifts a load of mass 600 kg. The load rises vertically at a constant speed of 12 m per minute. What is the useful power output of the motor?

  1. A0.12 kW
  2. B1.2 kW
  3. C7.2 kW
  4. D71 kW

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Correct answer: B. 1.2 kW

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