Question: To determine an I-beam’s maximum bending moment, moment of inertia using the parallel-axis theorem, and the maximum stress at a given location using the flexure formula.
As shown, I-beam ABC supports a sign that weighs S = 210N . The I-beam is 2.4m long and is further supported by a rod that is attached 1.8m from the wall. Assume that all forces acting on the I-beam act along its centroid and that the I-beam’s weight is negligible. Let the dimensions of the I-beam be w = 0.2m , g = 7×10−2m , h = 0.2m , j = 9×10−2m , c = 0.4m  Edit