When you push a 1.77 kg book resting on a tabletop, it takes 2.29 N to start the

Question

When you push a 1.77 kg book resting on a tabletop, it takes 2.29 N to start the book sliding. Once it is sliding, however, it only takes 1.45 N to keep the book moving with a constant speed.
A) what is the coefficient of static friction between the book and tabletop ?
B) what is the coefficient of kinetic friction between the book and the tabletop? When you push a 1.77 kg book resting on a tabletop, it takes 2.29 N to start the book sliding. Once it is sliding, however, it only takes 1.45 N to keep the book moving with a constant speed.
A) what is the coefficient of static friction between the book and tabletop ?
B) what is the coefficient of kinetic friction between the book and the tabletop?
A) what is the coefficient of static friction between the book and tabletop ?
B) what is the coefficient of kinetic friction between the book and the tabletop?

Explanation / Answer

static friction=2.29 N

static friction coeffciient=2.29/(1.77*9.8)=0.132

b)kinetic friction =1.45 N

kinetic friction coefficient=1.45/(1.77*9.8)=0.083

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