Determine change in rotational kinetic energy of ice skater

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If an Ice skater with moment of inertia of 80 kgm^2 and angular velocity of 4 rad/s reduces her moment of inertia to 60 kgm^2 by adjusting her arms, determine the change in the rotational kinetic energy of the ice skater by adjusting her arms.

Reference no: EM13991441

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