Question $2$: $($CSLO $1)$

$($a$)$ Fig$1$a$.$ is a bridge truss supported at A with a roller and at E with a pin. Using Figlb, complete

the free body diagram.

$($b$)$ Calculate reactions at the supports

$($c$)$ Sketch the free$-$body diagram you will use to determine the force in the member HC by method of

sections

$($d$)$ Sketch the free$-$body diagram for joints A$,$ B$,$ H and C using method of joints. No calculation is

required.