Published by:
CGP EDU Academic Team
Published on: September 12, 2026
As shown in the figure, a bob a mass m is tied by a massless string whose other end portion is wound on a fly wheel (disc) of radius
and mass
. When released from rest the bob starts falling vertically. When it has covered a distance of
, the angular speed of the wheel will be:

Text Solution
Verified by ExpertsThe correct answer is:
A
JEE Main 2020

(no slipping)



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