Find the bending moment at a section 4 m from the left end of a three hinged parabolic arch due to udl of $10 \mathrm{kN} / \mathrm{m}$ over entire span 30 m .
Explanation
The bending moment is calculated using the reactions and the equation of the parabola. The reactions are found using the equations of equilibrium and the total load on the arch.
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