A roll of paper has a uniform weight of 0.75 lb and is suspended from the wire hanger so...

A roll of paper has a uniform weight of 0.75 lb and is suspended from the wire hanger so that it rests against the wall. If the hanger has a negligible weight and the bearing at O can be considered frictionless, determine the force P needed to start turning the roll if θ = 30°. The coefficient of static friction between the wall and the paper is μ_s, = 0.25.