$3.)$ Consider the $2$D frame shown below. There are pins at A$,$ C$,$ D$.$ Point E is halfway between A and C$.$

EXTERNAL FORCES

a$)$ Draw a FBD$.$ Include all external reaction forces & moments.

b$)$ If there are any $2-$force members, identify them.

c$)$ Solve for the values of all external reaction forces.

INTERNAL FORCES $$ BEAM ACB

d$)$ Draw a diagram of member ACB with all external forces acting on it$,$ and indicate the orientation of the $$cut$$ at point E$.$

e$)$ Pick one half $($left or right of the cut at E$),$ draw the cut$-$piece and label all internal forces and bending moment at point E$.$

f$)$ Solve for all internal forces and bending moment at point E$.$