Determine internal loadings acting on the cross section at C of the beam considering segment CB and then AC$.$

a$)$ Show calculations steps for computing the result using segment CB$,$ identify results; and draw the section CB with external and internal loadings

b$)$ Show calculations steps for computing the result using segment AC$,$ identify results; and draw the section AB with external and internal loadings

c$)$ Draw section AC and section CB side by side with magnitude and direction of internal loadingsat the cut sections C of the beam AB$.$