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Average power of a ski lift to raise 100 passengers 150 m in 60 seconds

A ski lift raises 100 passengers averaging 80 kg in mass to a height of 150 m in 60 seconds. What average power does it output during the 60 seconds?

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Power is given by work divided by time,

P = W/t

The lift is doing work on the people, by pushing them against the force of the gravitational field. Work is defined by a force times distance. In this case, the ...

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