Physics (AS & A Level) · May / June 2016 · Paper 12 · Question 18
An escalator in an underground station has 250 people standing on it and is moving with a velocity of 4.3 m s–1. The average mass of a person is 78 kg and the angle of the escalator to the horizontal is 40°. What is the minimum power required to lift these people?
- A54 kW
- B64 kW
- C530 kW
- D630 kW
As printed in the paper
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Correct answer: C. 530 kW
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