The two trussses shown below only differ in their heights. They are both secured by a pin at A and a

roller at F and W$=1000$N is applied at pin E and C respectively.

For each truss:

a$)$ determine the internal forces in members BD and CD and CE $.$ State whether they are in

tension or compression.

b$)$ Based on your answer in part $($a$),$ if you were designing a bridge, which of the two trusses

would you choose? Please explain your answer.

Pin at A has a force in the y$-$direction and x$-$direction!!