Question

A block accelerates at 3.7 m/s2 down a plane
inclined at an angle 27.0. Find μk between the block and the in-
clined plane. The acceleration of gravity is
9.81 m/s2 .

Answer 1

The net force on the block is:
Fnet = Weight along incline - friction
ma = mgsin(∅) - μkmg
ma = mg(sin(∅) - μk)
μk = sin(27) - 3.7/9.8
μk = 0.076