An M = 50.0 kg beam is connected to a vertical wall by a hinge, while its upper end is supported by a horizontal 3.00 m long cable, as indicated in the figure below. An m = mass hangs from the upper end of the beam, and the attachment point of the cable is 4.00 m 20.0 kg above the hinge. a) Calculate the tension in the horizontal cable. b) Find both the x and y components of the force that the hinge exerts on the beam. 3.0 m M m 4.0 m