NEET Sample Paper NEET Sample Test Paper-32

  • question_answer A body of mass 10 kg and radius of gyration \[0.1\text{ }m\]is rotating about an axis. If angular speed is 10 rad/s, then angular momentum will be:

    A)  \[1\,kg\,{{m}^{2}}/s\]         

    B)  \[0.1\,kg\,{{m}^{2}}/s\]

    C)  \[100\,\,kg\,{{m}^{2}}/s\]       

    D)  \[10\,\,kg\,{{m}^{2}}/s\]

    Correct Answer: A

    Solution :

    \[J=I\omega =M{{K}^{2}}\omega =10\times {{(0.1)}^{2}}\times 10=1\,kg{{m}^{2}}{{s}^{-1}}\]

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