PROBLEM $5\mathrm{.}25\mathrm{.}2$ and $5\mathrm{.}3$ A truss is a structural framework consisting of straight individual members connected to form a triangle or series of triangles. Truss members are connected at joints $($or panel points$)$ with pins assumed to be frictionless. Loads are assumed to be applied at the joints. In the context of our presentation, all members are straight and are assumed to lie in the same plane.PROBLEM $5\mathrm{.}3$