A 10-meter-long, 150 kg beam extends horizontally from a wall. One end of the beam is fixed to the wall and the other end is attached to the same wall by a cable that makes an angle of 60° with the horizontal. A 75 kg sign is hung from the beam 2.50 meters from the wall. Determine the magnitude of the tension, in [N] on the cable necessary to keep the system in equilibrium.