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September 23, 2014

Homework Help: physics

Posted by ju on Thursday, November 11, 2010 at 3:10pm.

I keep geting this question wrong and cant figure out what i am doing wrong. Help please.

When you push a 1.75- book resting on a tabletop, it takes 2.23 to start the book sliding. Once it is sliding, however, it takes only 1.45 to keep the book moving with constant speed.

What is the coefficient of static friction between the book and the tabletop?

What is the coefficient of kinetic friction between the book and the tabletop?

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