A flywheel of mass 
and radius vector 
is at rest. When a force 
acts on it tangentially, it can rotate freely. Then, its angular velocity after 
is
A
B
C
D
Text Solution
Verified by ExpertsThe correct answer is:
C
Given, mass of flywheel, 
,
Radius vectors 
Force applied,
and time, 
Magnitude of radius
Similarly, 
Torque on the flywheel,
Now, using
Hence, the correct option is .
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