Posted by **vonne** on Thursday, September 30, 2010 at 10:52pm.

When you push a 2.05 kg book resting on a tabletop it takes 2.45 N to start the book sliding. Once it is sliding, however, it takes only 1.50 N to keep the book moving with constant speed. What are the coefficients of static and kinetic friction between the book and the tabletop? static? kinetic?

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