(a) For the cantilever beam shown in Fig. P8.89(a), determine the shear and moment as func...

(a) For the cantilever beam shown in Fig. P8.89(a), determine the shear and moment as functions of position. Express your answers in terms of parameters such as a P a. and b.

(b) For the cantilever beam with the three forces shown in Fig. P8.89(b), use super­position of the results of Part (a) to determine shear and moment as functions of position and draw the shear and moment diagrams.

Figure P8.89