A Man, Holding a Weight in Each Hand, Stands at the Center

question 20

Multiple Choice

A man, holding a weight in each hand, stands at the center of a horizontal frictionless rotating turntable.The effect of the weights is to double the rotational inertia of the system.As he is rotating, the man opens his hands and drops the two weights.They fall outside the turntable.Then:

• A)his angular velocity doubles
• B)his angular velocity remains about the same
• C)his angular velocity is halved
• D)the direction of his angular momentum vector changes
• E)his rotational kinetic energy increases

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