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COM of Center of Masses

A body is rot...

Question

A body is rotating non uniformly about a vertical axis fixed in an inertial frame. The resultant force on a particle of the body not on the axis is then

A

vertical

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B

horizontal and skew with the axis

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C

horizontal and intersecting the axis

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D

none of these

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Solution

The correct option is B horizontal and skew with the axis
The particle experience both centripetal force (Fc) due to rotation and a tangential force (Ft) as rotation is not uniform; which act as perpendicular directions.
The resultant of $\to F c$ and $\to F t$ = $\to F$
from figure is thus, in horizontal and skew with axis

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