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 minimum force P and the associated angle needed to start turning the roll. The coefficient of static friction between the wall and the paper is frictionless, determine the minimum force P and the associated angle needed to start turning the roll. The coefficient of static friction between the wall and the paper isµ=0.25
