The coefficient of static friction between wedges B and C is μs, = 0.6 and between the sur...

The coefficient of static friction between wedges B and C is μs, = 0.6 and between the surfaces of contact B and A and C and D, μs’ = 0.4. If the spring is compressed 200 mm when in the position shown, determine the smallest force P needed to move wedge C to the left. Neglect the weight of the wedges.