A circular platform is mounted on a frictionless vertical axle. Its radius 
and its moment of inertia about the axle is 
. It is initially at rest. A 50 kg man stands on the edge of the platform and begins to walk along the edge at the speed of 
, relative to the ground. Time taken by the man to complete one revolution is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
A
So, 
So, 
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