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April 25, 2014

Homework Help: physics

Posted by pakilina on Thursday, November 3, 2011 at 10:52am.

A 2 kg block is pushed 2 m along a fixed horizontal surface by a horizontal force of 20 N. The coefficient of kinetic friction of the surface is ľk= 0.40.
(a) How much work is done by the 20 N force?
(b) what is the work done by the friction force?
(c) What is the total work done by the net force on the object?

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