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AMU Medical AMU Solved Paper-2010

  • question_answer
    A person, with outstretched arms, is spinning on a rotating stool. He suddenly brings his arms down to his sides. Which the following is true about his kinetic energy K and angular momentum L?

    A)  Both K and L increase

    B)  Both K and L remain unchanged

    C)  K remains constant, L increases

    D)  K increases but L remains constant

    Correct Answer: D

    Solution :

                     If the person on rotating suddenly brings his arms down to his sides, then his kinetic energy increases and angular momentum L remains constant.


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