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April 16, 2014

Homework Help: Physics

Posted by Anonymous on Tuesday, October 5, 2010 at 5:46pm.

A 10-kg wooden box rests on a ramp that is lying flat. The coefficient of static friction is 0.50, and the coefficient of kinetic friction is 0.30. What is the friction force between the box and ramp if
no force horizontal force is applied to the box?
a 20 N horizontal force is applied to the box?
a 60 N horizontal force is applied to the box?

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