Question #$2(20$ marks$)$

The frame and the hoist support the $100-kg$ engine.

$($a$)$ Identify the multi$-$force members and the two$-$force members in the frame $(5$ marks$)$

$($b$)$ Draw the free$-$body diagram for member GE $(5$ marks$)$

$($c$)$ Calculate the internal forces $(N,V$ and M $)$ at point I on member GE$.(10$ marks$)$