Write the equation of bending in a rod. Write the unit of bending and its dimensional formula.

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(N/A) The equation for the bending of a beam (or rod) is given by the relation: $M = \frac{Y I_g}{R}$,where $M$ is the bending moment,$Y$ is Young's modulus of the material,$I_g$ is the geometrical moment of inertia of the cross-section about the neutral axis,and $R$ is the radius of curvature of the neutral axis.
The bending moment $M$ is defined as the product of force and distance,so its $SI$ unit is $N \cdot m$ (Newton-meter).
The dimensional formula for the bending moment is $[M^1 L^2 T^{-2}]$.

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