$[11]$ Assume the thin$-$walled section shown at right carries all bending in

the stringers $($the little black dots$).$ All stringers have an area of $2$ in $^(2),$

and all webs are $0\mathrm{.}050$ "thick. Determine the bending properties for

this beam I$\_($x$)$ & I y using this idealization.

$[12]$ Continuing analysis of $[11],$ assume P is $100$lb& calculate the

resultant shear flows in each web and draw them on the section.

Correct answers

$11.$ I x $=400$ in $4,$ I y $=500$ in $4,.$

$12.$ q ah $=2\mathrm{.}50$ lb$/$in $,$ q ab $=5\mathrm{.}00$ lb$/$in $,$ q bc $=2\mathrm{.}50$ lb$/$in $,$ q cd $=0\mathrm{.}00$ lb$/$in$,$ q de $=2\mathrm{.}50$ lb$/$in $,$ q ef $=$

$5\mathrm{.}00$ lb$/$in $,$ q fg $=2\mathrm{.}50$ lb$/$in $.$ Claim credit only if you also draw these on the section.

Please solve question $12$ using the answers provided.