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A ballet dancer is rotating about his ow...

A ballet dancer is rotating about his own vertical axis on smooth horizontal floor. `I, omega, L, E` are moment of inertia, angular velocity, angular momentum, rotational kinetic energy of ballet dancer respectively. If ballet dancer stretches himself away from his axis of rotation, then

A

L remains constant, I and K increase, `omega` decrease

B

L remains constant, I and K increase, `omega` increases

C

L remains constant, `omega` and K decrease, I increase

D

L remains constant `omega` and K increase, I decreases

Text Solution

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The correct Answer is:
D
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