For the beam illustrated below:

a$.$ Draw complete shear and bending moment diagrams.

b$.$ Find the maximum $V\frac{Q}{?}$ It shear stress in the beam. Is this maximum shear stress at the top, bottom or

centroid of the beam cross$-$section? $[$Answer: $1\mathrm{.}125$MPa $]$

c$.$ Find the maximum $M\frac{y}{\text{I}}$ bending stress in the beam. Is this maximum located at the top, bottom or

centroid of the cross$-$section? $[$Answer: $11\mathrm{.}25$MPa $]$