Question

Determine the point of application of force, when forces are acting on the rod as shown in figure.

Answer 1

Since the body is in equillibrium so we conclude  Vector F_net  = 0 and torque about any point is zero i.e., 

Let us assume that we apply F force downward at A angle θ  from the horizontal, at x distance from B

If body is in equillibrium then torque about point B is zero.