RAJASTHAN PMT Rajasthan - PMT Solved Paper-1998

  • question_answer
    A man standing on a revolving platform spreading his hands suddenly he stretches his hand. Then:

    A)  angular velocity increase

    B)  angular velocity decrease

    C)  angular momentum increase

    D)  angular moment is zero

    Correct Answer: A

    Solution :

    Angular momentum \[J=I\omega \] On stretching the arms, moment of inertia will decrease, so to conserved angular momentum, angular velocity will increase.


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