5.2. For the rigid frame shown in Figure P5-2, determine 1. the nodal displacement components and rotations, 2. the support reactions, and 3. the forces in each element. Let E 210 GPa, A = 6.25 x 10-3 m², and I = 7.8 x 10-5 m for all elements. Figure P5-2 20 kN 6 m 6 m