Moment of inertia of a body about a given axis is 
. Initially the body is at rest. In order to produce a rotational kinetic energy of 
, the angular acceleration of 
must be applied about the axis for a duration of:
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
B
JEE Main 2019
Given 
or 
or 
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