November 26, 2015

Homework Help: physics

Posted by Lupita on Thursday, November 7, 2013 at 10:07pm.

A 301 kilogram piano is being lifted at a steady speed from ground level straight upward to an apartment 10.0 meters above the ground. The crane that is doing the lifting produces a steady power of 415 watts. How long does it take to lift the piano?

I dont understand how to begin to solve the question.

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