$5-37*$ A load $P$ will be supported by a structure consisting of a

rigid bar $A,$ two aluminum alloy $(E=10,600$ksi bars $B,$ and a

stainless$-$steel $(E=28,000$ksi $)$ bar $C,$ as shown in Fig. P$5-37.$

Each bar has a cross$-$sectional area of $2\mathrm{.}00i{n}^2$ If the bars are

unstressed before the load $P$ is applied, determine the normal

stresses in the bars after a $40-$kip load is applied.

Answers given from book: StressB $=6\mathrm{.}02$ ksi $($T$),$ StressC $=7\mathrm{.}95$ ksi $($T$).$