Figure P$5$ shows a rigid$-$jointed

frame. The frame is roller supported

at A and pinned at support $B.$

a$)$ Show that the rigid$-$jointed plane is

statically determinate and compute

the external reactions at supports

A and $B.$

b$)$ Write an expression of equations

for the bending moment

throughout the whole frame and

draw the bending moment

diagram, highlighting all the salient

points.

c$)$ Draw the shear force diagram for

the whole frame.

Figure P$5$