Use the FEM to determine the displacements and forces in the space truss, shown in figure 1.25. The coordinates of the nodes in meter units are given in table 1.7. The temperature of element 1 is raised by \(100^{\circ} \mathrm{C}\) above the reference temperature. Assume Young's modulus \(E=70 \mathrm{Gpa}\) and area of cross section \(A=1 \mathrm{~cm}^{2}\). Assume CTE \(\alpha=20 \times 10^{-6} /{ }^{\circ} \mathrm{C}\). The magnitude of the downward force (negative \(z\) direction) at node 4 is equal to 10,000 \(\mathrm{N}\).