[ANSWERED] 1. Solve Problem 2.3 with P ¼ 0 (no force applied at node 3) and with node 5 given a fixed, known…

1. Solve Problem 2.3 with P ¼ 0 (no force applied at node 3) and with node 5 given a fixed, known displacement of d as shown in Figure P2–4.
2. For the spring assemblage shown in Figure P2–5, obtain the global stiffness matrix by the direct stiffness method. Let k
(1)
= 1 kip=in:; k
(2)
= 2 kip=in:; k
(3)
= 3 kip=in:; k
(4)
= 4 kip/in., and k
(5)
= 5 kip/in.