For the beam and loading shown, if d = 250 mm, determine: (a) The magnitude of the normal stress due to bending at x = 1.5 m from point A. (b) The magnitude of the maximum normal stress due to bending. 15 kN-m 60 KN B 0.8 m 30 kN/m 1.2 m 33 kN-m c) 240 mm 11 o (@1.5 m) |o| (max) = = MPa MPa XX