Question: A rectangular cross-section beam has a width of (100 mathrm{~mm}). Determine the depth of the beam so that maximum bending stress in the beam does

A rectangular cross-section beam has a width of $100 \mathrm{~mm}$. Determine the depth of the beam so that maximum bending stress in the beam does not exceed $35 \mathrm{MPa}$. The maximum bending moment in the beam is $8.4 \mathrm{kN} . \mathrm{m}$.

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