A fence post of mass m = 5 kg supports a fence with three
lengths of barbed wire. The bottom wire is a distance d = 0.35 m
from the ground and each wire is a distance 0.35 m above the
previous one. Each of these three wires has the tension on it. For
this problem, assume that the force exerted by these wires is
purely horizontal. An additional guy wire is used to keep the pole
upright with a tension of Fa = 490 N. The guy wire attaches to the
post at a point h = 0.87 m above the ground and makes an angle of ?
= 45 with respect to the horizontal. Choose the correct free body
diagram.