The 570 kN-m moment can be carried by the simply supported beam in the illustration. It was discovered that the real moment to be carried is closer to 625 kN-m. Assuming Fy to be 250 MPa. A. Examine whether the beam can still accommodate the extra moment. B. Alternatively, what will the thickness of the 150mm-wide plate be that will be put to the top and bottom flanges? 300 25 25 200 cg 3-a 12 300 25 25 200 150 cg 12 3-b t=?