A 3.60 102-kg piano is being lifted at a steady speed from ground level straight up to an apartment 18.0 m above the ground. The crane that is doing the lifting produces a steady power of 4.00 102 W. How much time does it take to lift the piano?

Question

A 3.60  102-kg piano is being lifted at a steady speed from ground level straight up to an apartment 18.0 m above the ground. The crane that is doing the lifting produces a steady power of 4.00  102 W. How much time does it take to lift the piano?

drwls · Answer

Use an energy method. Power x time = Potential energy change We will be glad to critique your work

Anonymous · Answer

1.10