Block C has a mass mc and is confined between two walls by smooth rollers. If the

Question:

Block C has a mass mc and is confined between two walls by smooth rollers. If the block rests on top of the spool of mass ms, determine the minimum cable force P needed to move the spool. The cable is wrapped around the spool's inner core the coefficients of static friction at μA and μB.

Given:

g = 9.81m/s2

mc = 50 kg

ms = 40 kg

μ A = 0.3

μ B = 0.6 r1 = 0.2 m r2 = 0.4 m

FB Ng