Question

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.

Answer 1

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.

Answer 2

Answer:

c) horizontal and intersecting the axis