How much time does it take to lift the piano

Reference no: EM13308038

1) A 3.0x10 ² kg piano is being lifted at a steady speed from ground level straight up to an apartment 10 m above the ground. The crane that is doing the lifting produces a steady power of 4.0x10 ² W.

How much time does it take to lift the piano?

Reference no: EM13308038

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