The beam is a wide-flange W16 31 subjected to a uniformly distributed load of 1000 lb/ft and a point load of 500 lb. The modulus of elasticity of the beam is E = 29 106psi. a) Determine the element stiffness matrix for each element b) Determine the element force vector for each element c) Determine the global structural stiffness matrix K d) Determine the global force vector F e) Solve for the nodal displacement vector. f) Calculate the reaction forces at points 1 and 2 g) Calculate the reaction moment at point 1 1000 lb/ft -10 ft- 2.5 +2.5 ft2.5 ft 500 lb