The beam AB, consisting of a cast-iron plate of uniform thickness b and length L, is to support the load shown. (a) Knowing that the beam is to be of constant strength, express h in terms of x, L, and ho. (b) Determine the maximum allowable load if L=1 m, ho-300 mm, b=32 mm, and gall-165 MPa. A -X -* h -L- B ho