5. Consider the beam in Figure.5, assume material Yuang's modulus E=210Gpa and A=4.0 10x 4m, the inertia I to be constant throughout the beam, A force of 200N and a moment 500N.m are applied to the beam at mid-length. The left end is fixed support and the right end is pin support. (1) please discretize the beam into two elements with node 1-3; | (2) obtain the global stiffness matrix (3) obtain the nodal displacement and unknown rotations at middle nodal. x Figure5 Beam supported in space