Given are: E = 2.5ksi, A= 1.0in, L = 1.0in, P= 3750.0lb, P3=-1600.0lb. For the axial multi-segmented bar (a) set-up and show element stiffness matrix for each element, (b) assemble and show global stiffness matrix, P (c) list and apply boundary conditions and present the reduced global stiffness matrix, 4A (d) solve for the unknown displacements, (e) solve for the nodal reactions, 2L (f) calculate internal forces and stresses in each element of the structure. 3A 3L 2A 4L