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September 20, 2014

Homework Help: Physics

Posted by Alex on Wednesday, May 16, 2012 at 11:42pm.

A sled is pulled with a horizontal force of 17 N along a level trail, and the acceleration is found to be 0.40 m/s2. An extra mass m = 4.4 kg is placed on the sled. If the same force is just barely able to keep the sled moving, what is the coefficient of kinetic friction between the sled and the trail?

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