A beam system is shown. There is an internal hinge at node $2.$ Apply Case $1($see Topic $3$

Shared Notes, p$.10)$ and determine the deflection at node $2.$ Use $E=29,000$ksi and $I=150i{n}^4.$

Ans: $u_{2y}=-0\mathrm{.}603in.$Use stiffnexx matrix method