The cantilever beam shown consists of a Z shape of 1/4-in. thickness. For the given loading, determine the distribution of the shearing stresses along line A9B9 in the upper horizontal leg of the Z shape. The x' and y' axes are the principal centroidal axes of the cross section, and the corresponding moments of inertia are Ix = 166.3 in4 and Iy = 13.61 in4.
