February 23, 2017

Homework Help: physics

Posted by Sara on Monday, March 5, 2012 at 9:56pm.

A box with a mass of 2 kg is lifted (without acceleration) through a height of 8.0 m in order to place it upon the shelf of a closet.
(a) What is the increase in potential energy of the box?
1 . J

(b) How much work was required to lift the box to this position?
2 J

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