Problem $1$

Consider the loaded trass shown in Figure $1.$

Figure $1$: Structure $1$

$($a$)$ Identify the zero$-$force members.

$($b$)$ Find the internal force in the truss member GF$.$ Indicate if it is tensioned or compressed.

$($c$)$ Find the internal force in the truss member ED and indicate its nature.

$($d$)$ Determine the internal force in the truss member BC based on your ansivers to questions $($a$)$ and $($c$).$ Is the member tensioned or compressed?

$($e$)$ What is the internal force in the truss member FB$?$ Indicate its nature.