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A small particle of mass m is given an initial high velocity in the horizontal plane and winds its cord around the fixed vertical shaft of radius a. All motion occurs essentially in horizontal plane. If the angular velocity of the cord is when the distance from the particle to the tangency point is r0, then the angular velocity of the cord after it has turned through an angle is.

A

`omega=omega_(0)`

B

`omega=a/r_(0)omega_(0)`

C

`omega=(omega_(0))/(1-a/r_(0)theta)`

D

`omega=omega_(0)theta`

Text Solution

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The correct Answer is:
C
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