Problem $1(40$ pts $-20$ each$)$: Exial$/$Shear$/$Moment Diagrams. For the two structures below:

a$)$ Calculate its determinacy $(2$ pts each$)$

b$)$ Generate the free body diagram $(3$ pts each$)$

c$)$ Solve for the reactions and perform one validation $(5$ pts each$)$

d$)$ Draw the moment, shear and axial internal force diagrams $(10$ pts $)$

Case $($a$)$

Case $($b$)$