Q$\mathrm{.}3)$ Using FE software, perform the simulation of the system as shown in Figure. A compression load of $100$ kN is applied to the system. You may utilize either $1-$D of $3-$D modeling feautures, depending upon your preference. Calculate the final deformation $(L_1)$ and reaction forces at the boundaries. Each member has a square cross$-$section.

$L_1=100cm,L_2=200cm,$

$E_{\text{s}\text{t}\text{e}\text{e}\text{l}}=200$GPa,$E_{\text{a}\text{l}\text{u}\text{m}\text{i}\text{n}\text{i}\text{u}\text{m}}=70$GPa

$A_{\text{s}\text{t}\text{e}\text{e}\text{l}}=4c{m}^2,A_{\text{a}\text{l}\text{u}\text{m}\text{i}\text{n}\text{u}\text{m}}=9c{m}^2$