A 120 lb cabinet is mounted on casters that can be locked to prevent their rotation. the coefficient of static friction is 0.30. if h = 32 in. what is the force P to move the cabinet if a) caster A and B are locked b) B is locked A is free to move c) A is locked B is free to move p is applied from the left side pushing right. the width of the cabinet from caster a to b is 24 inches.