Question $5.$

$9$ points

The truss supports two horizontal loads $F_1$ and $F_2.$ Let $F_1=F_2=10kN.$

$($a$)$ Find the reactions at the supports A and $G.$

$(2)$

$($b$)$ Can you identify any zero$-$force member $?$ If so$,$ which one. Explain.

$($c$)$ Determine the force on members $BD,BE$ and $BG$ of the truss and state if the members are in tension or compression.

$($Hint: Use method of section $)$

$($d$)$ Using the above results, find the axial forces in the remaining members.

$(1)$