A body is rotating uniformly about a vertical axis

Asked by admin @ in Physics viewed by 283 People

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

(a) vertical
(b) horizontal and skew with the axis
(c) horizontal and intersecting the axis
(d) none of these.

Answered by admin @


Answer ⇒ Option (c)
. Horizontal and intersecting the axis.


Explanation ⇒ According to the question, the body is rotating uniformly, therefore, the particle which is not on the axis will be moving in a uniform circular motion.


This circle will be horizontal with its center at the intersecting point with the axis.

∴ It will be having the radial acceleration and hence a radial resultant force.


Thus this force will be horizontal and intersecting the axis.



Hence, Option (c). ''Horizontal and intersecting the axis is correct''.



Hope it helps.





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