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netone
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Power to lift* a piano
A piano of mass 200 kg is lifted vertically by a 0.5 hp motor. Given that 746 watt = 1 hp,
how long will it take the motor to lift the piano to an apartment that is 20 m above the
ground?
Not really sure how to start this question, so any explanation would be greatly appreciated.
A piano of mass 200 kg is lifted vertically by a 0.5 hp motor. Given that 746 watt = 1 hp,
how long will it take the motor to lift the piano to an apartment that is 20 m above the
ground?
Not really sure how to start this question, so any explanation would be greatly appreciated.
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