When you push a 1.82-kg book resting on a tabletop, it takes 2.30 N to start the book sliding. Once it is sliding, however, it takes only 1.46 N to keep the book moving with constant speed.

Question

When you push a 1.82-kg book resting on a tabletop, it takes 2.30 N to start the book sliding. Once it is sliding, however, it takes only 1.46 N to keep the book moving with constant speed.
Q1. What is the coefficient of static friction between the book and the tabletop?
Q2.  What is the coefficient of kinetic friction between the book and the tabletop?

drwls · Answer

Q1: 2.30 = M*g*mus mus = 2.30/(M*g) = 0.129 Q2: 1.46 = M*g*muk muk = 1.46/(M*g) = ___