(Solved): 1. (10pts) The figure below is constrained 2-D truss. Determine the elemental stiffness matrices, ...

1. (10pts) The figure below is constrained 2-D truss. Determine the elemental stiffness matrices, the assembled system, and resulting global equilibrium system. Compute the displacements of node 2 and 3 , and calculate the stress in the diagonal element. $$A=0.001{\mathrm{m}}^2,E=100\mathrm{GPa}$$. Attach any MATLAB code.