Posted by **amanda** on Tuesday, March 22, 2011 at 3:09pm.

When you push a 1.55 kg book resting on a tabletop it takes 2.10 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?

- physics -
**qasda**, Wednesday, September 3, 2014 at 1:16pm
qqsw

- physics -
**Anonymous**, Sunday, March 8, 2015 at 5:13pm
65

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