Q$5$ Use the graphical method to construct the shear force and bending$-$moment diagrams for the beams shown. Label all significant points on each diagram and identify the maximum moments along with their respective locations. Additionally: $($a$)$ Determine $V$ and $M$ in the beam at a point located $0\mathrm{.}75m$ to the right of $B.$

$($b$)$ Determine $V$ and $M$ in the beam at a point located $1\mathrm{.}25m$ to the left of $C.$