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July 8, 2015

Homework Help: Physics

Posted by Lina on Thursday, June 2, 2011 at 9:35am.

A lift is pulled up to the top of a building by a constant force of 6400N at a constant speed of 2m/s. It takes 3mins to reach the top.
(a) how much work is done in raising the lift to the top of the building ?
(b) what is the power required ?

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