Please solve this within $2$ hours.

The concrete beam shown $\backslash (($E$=30000\backslash$mathrm$\{$MPa$\})\backslash )$ below is supported by a pin at A and roller at B $.$ The beam section is also shown in the figure. Determine;

a$.$ Shear force and bending moment diagrams. Label the values of shear and moment at locations $\backslash (\backslash$mathrm$\{$A$\},\backslash$mathrm$\{$B$\}\backslash )$ and C as well as any maximum or minimum values along the beam length.

b$.$ At a tensile stress of $2\mathrm{.}75$ MPa $,$ the concrete in the beam will crack. Will this beam crack under the given loading? Provide supporting calculations to prove your answer and provide the locations at which beam will crack. You do not need to consider combined shear and bending moment effects in solving this part.

c$.$ Determine the actual moment value $(\backslash (\backslash$mathrm$\{$M$\}\_\{\backslash$mathrm$\{$cr$\}\}\backslash ))$ that will cause cracking of the beam at the bottom. Determine the corresponding curvature associated with $\backslash (\backslash$mathrm$\{$M$\}\_\{\backslash$mathrm$\{$cr$\}\}\backslash ).$

Beam Section