For the truss shown in figure use symmetry to determine the

Question

For the truss shown in Figure, use symmetry to determine the displacements of the nodes and the stresses in each element.

All elements have E = 200 GPa. Elements 1, 2, 4, and 5 have A = 10 10^×4 m² and element 3 has A = 20 10^×4 m². Let dimension a = 2 m and P = 40 kN. The supports at nodes 1 and 4 are defined.