A $500\backslash$times $500$ timber is strengthened by the addition of $500$ mm x $8$ min steel plates secured to its top and bottom surfaces The composite beam is simply supported at its ends and carries a uniformly distributed load of $100$ kN$/$m nun over an effective span of $6$ m$.$ Find the maximum bending stresses in steel and tiruber at the mid$-$span, Take E f$$r steel $=2*10^3.$ N $/$ m $*$ m $^2$ and for timber $=0\mathrm{.}1*10^3*$ N $/$ m $*$ m $^2.$ its very urgent