The two trussses shown below only differ in their heights. They are both secured by a pin at $\backslash ($ A $\backslash )$ and a roller at F and $\backslash (\backslash$mathrm$\{$W$\}=1000\backslash$mathrm$\{$~N$\}\backslash )$ 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.