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December 18, 2014

Homework Help: physics

Posted by sandy on Monday, September 30, 2013 at 6:22pm.

You are pushing a refrigerator across the floor of your kitchen. You exert a horizontal force of 294 N for 7.6 s, during which time the refrigerator moves a distance of 3.2 m at constant velocity.

(a) What is the total work (by all forces) done on the refrigerator?
(b) What is the work done by friction?

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