In reference to the figure below, let $a=2\mathrm{.}9ft,L=9ft,H=3ft,$ and $w=1,026$ pir and compute the elongation of bar BC due to the applied load. Member BC has a cross$-$sectional area $A=0\mathrm{.}88i{n}^2$ and the material has $E=4,625$ksi. Express your answer in inches using THREE digits after the decimal point.