$2\mathrm{.}2-11.$ A rigid, weightless beam BD supports a load P and is$,$ in turn, supported by two hanger rods. $(1)$ and $(2),$ as shown in Fig. P$2\mathrm{.}2-11.$ The rods are initially the same lengthL $=6$ft and are made of the same material. Their rectangu$-$lar cross sections have original dimensions $[$m $=1\mathrm{.}5$ in$.$t$0\mathrm{.}75$ in$.)$ and $(72=2,0$ in$.1=1\mathrm{.}0$ in$.),$ respectively. $($a$)$ Atwhat location, b$,$ must the load Pact if the axial stress in theIwo bars is to be the same. i$.$c$.,$o$,=$ a$?($b$)$ What is the magnitude of this tensile stress if a load of P $=40$ kips is appliedat the location determined in Part $($a$)?$