Question: 3 . A beam carried a bending moment ( load ) of 1 , 0 0 0 N m . The beam has a rectangular

3. A beam carried a bending moment (load) of 1,000 Nm. The beam has a rectangular
cross section with height of 150 mm and a width of 75 mm.
a. Look up the formula and find the moment of inertia I about the neutral axis.
b. Find the maximum normal stress due to bending. Is the maximum found on the
top and bottom surfaces, or at the center?
3 . A beam carried a bending moment ( load ) of 1

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