QUESTION 4: STATICS 4.1 Study the beam shown in FIGURE 2 below and answer the following questions:
50kNFIGURE 2 4.1.1 Calculate the magnitude of the reactions. 4.1.2 Calculate the bending moments at the principal points. (4) 4.1.3 Draw the bending moment diagram. (5) (3) 4.2 The diagram in FIGURE 3 below shows a round bar that was machined centrally to a cube along the last one third of its length. If this compound bar still maintained its original length, find the centre of gravity of this compound bar. (4) [16]