Problem $2.$

Consider the shaft shown below $($cross$-$section: a circle with diameter of $0\mathrm{.}625$ in $.).$ Supports $B$ and $D$ are pin supports, and two concentrated forces are applied at points A and $E.$

$($a$)$ Sketch the shear force and bending moment diagrams of the shaft.

$($b$)$ Determine the maximum flexural stress in the beam and comment on its type $($tension or compression$).$