You are assigned a job to install a signboard that advertises your friend's
new cafe. In order to do the job, you are required to study a simple plan as
shown in the FIGURE 1. A pivot is used to attach the base of a 5.0 kg
beam to a wall. A cable is attached to the beam and to the wall in such a
way that the cable and beam are perpendicular to each other. The beam is
2.0 m long and makes an angle of 37° with the vertical. The mass of the
signboard is 10 kg. With the aid of free body diagram of the beam,
determine the amount of tension that the cable sustains.