1. The beam AB is fixed to the wall at A, and the weight of the beam can be neglected. The beam is subject to two forces (one at B and one at the hook) and one moment (at B) as shown in Figure 1. Find the support reaction forces and moments at A. -20 ft- -5 ft- 1500 lb Figure 1. 500 lb 10 ft- -3 ft- 5000 lb.ft D