Question $3$: $(15$ Points$)$

In the truss structure shown, use method of section to find forces in members BC$,$ FC and FE$.$ Then use method of joints to find forces in all other members.

Answers: Forces in member:

$AB=BC=5,500lb(T)$

$CD=3,000lb(T)$

$AG=GF=-9,530lb(C)$

$FE=ED=-2,600lb(C)$

$CF=-2,500lb(C)$

$CE=2,500lb(T)$

$BG=BF=0$