Two concentrated loads are placed symmetrically on the simply supported beam. (a) Determine the expression for the maximum displacement of the beam. (Hint: Utilize symmetry and analyze the left half of the beam.) (b) Calculate the maximum displacement and maximum bending moment for a W14 x 26 section us- ing the following data: a = 6 ft, L = 20 ft, P = 6000 lb, and E = 29 x 106 psi. H |--4 L FIG. P6.11 X I