An asymmetric beam cross-section is shown below. a y a I = 5a/8 Z a/2 2t 3t The centroid position is indicated as the origin of the axes and the I values are given as: Iy = 2/at = at Iyz = 1at The maximum bending moment in the beam is My = 5,000 Nm and M = 0 If a is equal to 48 cm and t is equal to 3.7 mm, calculate the magnitude of the maximum direct stress in the section (tension or compression along the beam length). Enter your value in MPa but without the units, as a positive number to 2 decimal places.