For the given truss, apply virtual work method and determine required values, Members have area of $4\mathrm{.}5$ in ${?}^2,$ and $E=29,000$ksi.

a$)$ What is the vertical displacement at G due to applied loads.

b$)$ If temperature on AE and EG is raised by $65F,$ what is the total vertical displacement of G $($including the given applied loads, $\{$:$=6{10}^{-6}\frac{1}{F}).$

c$)$ What is the horizontal displacement of point G under this combined the scenario.

d$)$ How would a vertical downward settlement at A effect the horizontal displacement of G that was calculated at part c $?$