Problem no. 4 Cords are loop around a small spacer separating two cylinders each weighing 400 kg and pass, as shown in figure over a frictionless pulleys to weights of 200kg and 400 kg. Determine the angle 0 and the normal pressure N between the cylinders and the smooth horizontal surface. Total W = 800 kg 400kg 200kg Problem no. 5 Three bars, hinged at A and D and pinned at B and Cas shown in figure, form a four- link mechanism. Determine the value of P that will prevent motion. C 60 45 45 75 20 KN