Question

suppose the book in the figure below weighs 9.1 n. to move the book from rest requires a minimum horizontal force p of magnitude 2.2 n. the book will keep moving at constant velocity if the magnitude of the force p is reduced to 1.4 n. find the coefficients of static and kinetic friction between the book and the table.

Answer 1

Step-by-step explanation:

You didn't post a figure, but I think I get the picture.

Ff = μN

μ = Ff/N

Ff = force of friction

N = Normal force

N = W = 9.1 N

Static coeff. of friction = μ-s = p₁/N = 2.2 N / 9.1 N = .242

Kinetic coeff. of friction = μ-k = p₂/N = 1.4 N / 9.1 N = 0.154