Question: for each section illustrated find the second moment of area...
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For each section illustrated, find the second moment of area, the location of the neutral axis, and the distances from the neutral axis to the bottom surfaces. Consider that the section is transmitting a positive bending moment about the z axis, Mz, where Mz = 1.13 kN.m?
Determine the resulting stresses at the top and bottom surfaces and at every abrupt change in the cross section.