Rotational MotionEasy
Question
A dancer having moment of inertia I is rotating with constant angular velocity of 20 rad/sec about a vertical axis on a frictionless surface with her hands folded. When she opens up her hands her angular velocity reduces to 10 rad/sec. Then her new moment of inertia will be :-
Options
A.2 I
B.3 I
C.I /2
D.I /3
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