Question $3(40$ Marks$)$:

The loaded truss, shown in the figure, is

supported by a roller at $D$ and pin at $A.$

Determine the internal forces in members:

a$)AB$ and $AG.$

b$)GB$ and $GF.$

c$)BF$ and $BC.$

d$)DC$ and $DE$

$A_y=16kN$

$D_y=16kN$

Notes.

Support reactions are given in the figure.

Specify whether the members are in Tension or Compression.

Use the table given below to summarize your answer.