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April 20, 2014

Homework Help: physics

Posted by Kelsey on Tuesday, November 15, 2011 at 6:25pm.

A 220 N crate is pushed along the ground with a horizontal force. The coefficient of kinetic friction is 0.21 and the coefficient of static friction is 0.31. The crate moves at a constant speed of 4.1 m/s.

a) Draw a free-body diagram for the crate.

b) What is the size of the pushing force? 46.2 N

c) How long will it take the box to stop if the pushing force is removed?

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