The force FA = 30 lb. The vector sum of the forces on the beam is zero, and the sum of the...

The force FA = 30 lb. The vector sum of the forces on the beam is zero, and the sum of the moments of the forces about the origin of the coordinate system is zero, (a) Determine the forces FB, FC, and FD. (b) Determine the sum of the moments of the forces about the right end of the beam.