Starting from the weak form of the governing equation, using the galerkin method with two elements, with boundary con- ditions u(0) = 0 and uz(l) = 0 , and without specified external loads, derive a solution in the form: ku- where k is the stiffness matrix, u is the global displacement vector and q is the global load vector. use linear basis functions in your derivation and assume that the area is constant across each element.