Problem $2(50$ points$)$: A space truss is composed of $3$ members and $4$ nodes; the coordinates are given in the following figure. For all three members, the cross$-$sectional areas are $0\mathrm{.}1m^2,$ and the modulus of elasticity $E=210$GPa. A load of $20$ KN is applied at node $1$ in the global x $-$direction. Nodes $2,3$ and $4$ are pin$-$supported and thus constrained from movement in the $x,y,$ and $z$ direction. Find the displacement of node $1$ using a FEA software. Please include in your report the following $($a$)$ a snapshot from the software showing the deformed structure and labeled nodes and elements. Note you may obtain a different nodes and elements numbering to the one shown in Fig. $2,$ but you must ensure that there are $3$ elements and $4$ nodes only, and $($b$)$ a list of the nodal reaction forces and displacements.