[ANSWERED] 1. For the spring assemblage shown in Figure P2–2, determine the displacement at node 2 and the…

1. For the spring assemblage shown in Figure P2–2, determine the displacement at node 2 and the forces in each spring element. Also determine the force F3. Given: Node 3 displaces an amount d = 1 in. in the positive x direction because of the force F
3
and k
1
= k
2
= 500 lb/in.
2. a. For the spring assemblage shown in Figure P2–3, obtain the global stiffness matrix by direct superposition.
b. If nodes 1 and 5 are fixed and a force P is applied at node 3, determine the nodal displacements.
c. Determine the reactions at the fixed nodes 1 and 5.