Question
Name the physical quantity corresponding to inertia in rotational motion. How is it calculated? Give its units.

Answer

Moment of Inertia (I)

$\text{I}=\text{MK}^2,\text{where K}-=\sqrt{\frac{\text{r}^2_1+\text{r}^2_2\dots\text{r}^2_{\text{n}}}{\text{n}}}$

where r1 , r2, r3, are all perpendicular distances from the axis of rotation. Its S.I. unit is kgm2.

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