Plot shear and moment diagrams for the beams shown in the figures.
5-26 through 5-28. For the beams loaded as shown in the figures, write explicit expressions for $M(x)$ 's along the spans. Assume the origins of $x$ at $A$. Since the applied loads are discontinuous, different functions apply for regions $A C$ and $C B$.(DIAGRAM CAN'T COPY)