a metal brick is positioned between two rigid supporting blocks as shown, the metal brick has dimensions d$,$ h and w as shown. equal sized gaps are present at each end of the brick. Determine the internal force in the brick if the temperature is increased by deltaT given h$=80$mm$,$ w$=250$mm $,$d $=80$mm$,$ s$=0\mathrm{.}25$mm alpha brick $=20(10^-6).$degree C $,$ Ebrick $=200$Gpa $,$ delta T $=105$ degree C$($ignore deflection in the rigid supports assume they cannot move