MUST USE VIRTUAL WORK METHOD AND SHOE WORK WOTH FREE BODY DIAGRAM!!!!or problems $9\mathrm{.}1$ through ${9\mathrm{.}6}_{?},$ use the virtual work method to determine the deflection of each of the joints indicated. $E=29,000$ksi for all members unless otherwise indicated. The cross section of each member is given as $i{n}^2$ unless noted otherwise.

P$9\mathrm{.}1$ Find ${}_{Bx}$ and ${}_{Ey}.$ Bar areas:

$AB=7$;$BC=DE=EC=2$;$AD=$

$BE=4$; and $DB=6.($Ans: ${}_{Ey}=$

$0\mathrm{.}753$ in$.$ darr,${}_{Bx}=0\mathrm{.}173$ in$.)$

Problem $9\mathrm{.}1$