Use the Method of Sections to solve the following problems:
1. For the truss shown in the figure for this
question, members CD and FG shown in
bold each have a weight of 4 N. Establish
the force in members AB, CD, DH, and HI.
Ans. $F_{AB} = 0$
$F_{CD} = 8$ N (compression)
$F_{DH} = 15$ N (tension)
$F_{HI} = 4$ N (compression)