Chapter 12, Problem 71P

SSMA uniform cube of side length 8.0 cm rests cm a horizontal floor. The coefficient of static friction between cube and floor is μ. A horizontal pull $\stackrel{\to }{P}$ is applied, perpendicular to one of the vertical faces of the cube, at a distance 7.0 above the floor on the vertical midline of the cube face. The magnitude of $\stackrel{\to }{P}$ is gradually increased. During that increase, for what values of μwill the cube eventually (a) begin to slide and (b) begin to tip? (Hint: At the onset of tipping, where is the normal force located?)