For the beam and loading conditions shown below, calculate the moment and shear just to the left of $C.$ Use $P1=1\mathrm{.}5kN$ and $P2=3\mathrm{.}5kN,$ and use $L=1\mathrm{.}0m.$

For the beam and loading conditions given in Problem $4,$ calculate the maximum normal $($i$.$e$.,$ flexural$)$ stress and shear stress just to the left of $C.$ Sketch the shear and normal stress distributions across the depth of the cross$-$section at the same point. Use $b=40mm$ and $h=60mm.$

Consider the beam and loading conditions given in Problem $4.$ If an axial force, $P3=4kN$ is applied, draw the new normal stress distribution across the depth of the cross$-$section just to the left of $C.$