QUESTION #5 - Internal Forces 150 lb/ft A E D Ca B 10 ft -4 ft- 2 ft 2 ft Figure 4 [21 marks] As shown in Figure 4, a compound bean comprises a weightless beam CD that supports another beam AE at roller B. Beam AE weighs 150 lb/ft. (a) Determine the reaction at the supports of AE. (b) Determine the reaction at the supports of CD. [4 marks] [4 marks] (c) Determine the shear and bending-moments at the midpoint of each beam segment. [6 marks] (d) Draw the shear and bending-moment diagrams for each of the two segments of the compound beam. State the values at relevant locations along the diagrams. [7 marks]