1. A W-shape is to be selected to support the loads shown below. A) Plot the shear and bending moment diagrams for the beam. B) Select the lightest weight W-shape from the provided tables based on a safety factor of 1.5. The material has a failure normal stress σfail = 50 ksi. 7 k 7k 3k/ft 4 ft 12 ft 4 ft

Fig: 1