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A man spinning in free space changes the shape of his body by spreading his arms (or) curling up. By doing this he can change his
a. Moment of inertia
b. Angular velocity
c. Angular momentum
d. Rotational kinetic energy

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Only a and b are correct

Only a, b, d are correct

Only a, c and d are correct

Only b, c and d are correct

answer is B.

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Detailed Solution

Angular momentum is constant as there is no external torque is acting.

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