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Question
A body is rotating nonuniformity about a vertical axis fixed in an inertial frame. The resultant force on a particle of the body not on the axis is _________ .
Options
vertical
horizontal and skew with the axis
horizontal and intersecting the axis
None of these
Solution
horizontal and skew with the axis
The resultant force on a particle of the body rotating non-uniformly is always horizontal and skew with the rotation axis because net torque on the body is non-zero.
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