A shaft is made of a polymer having a parabolic upper and lower cross section as shown in the figure below (Figure 1). If it resists a moment of
M=115N*m, determine the maximum bending stress in the material using the flexure formula. Express your answer to three significant figures and include appropriate units. Part B Determine the maximum bending stress in the material using integration. Express your answer to three significant figures and include appropriate units.
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