Consider the beam in Figure Q$12.$

$($a$)$ Draw a free$-$body diagram of the beam and calculate the reactions.

$($b$)$ Calculate and draw the Shear Force Diagram and Bending Moment Diagram. These diagrams should be drawn accurately with all important aspects clearly labelled.

$($c$)$ If a structure is described as statically indeterminate, explain what this means with reference to the equations of equilibrium and redundancy.

Figure Q$12$