$7\mathrm{.}69$ and $7\mathrm{.}70$ For the beam and loading shown, $($a$)$ draw the shear and bending$-$moment diagrams, $($b$)$ determine the maximum absolute values of the shear and bending moment.

$($a$)|V{|}_{\text{m}\text{a}\text{x}}=12\mathrm{.}00kN$;$|M{|}_{\text{m}\text{a}\text{x}}=4\mathrm{.}64kN*m.$

$($b$)|V{|}_{\text{m}\text{a}\text{x}}=41\mathrm{.}4kN$;$|M{|}_{\text{m}\text{a}\text{x}}=35\mathrm{.}3kN*m.$

Fig. P$7\mathrm{.}69$