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KVPY Sample Paper KVPY Stream-SX Model Paper-9

  • question_answer
    An object is moving in a circle at constant speed v. The magnitude of rate of change of momentum of the object

    A) is zero

    B) is proportional to v

    C) is proportional to \[{{v}^{2}}\] 

    D) is proportional to \[{{v}^{3}}\]

    Correct Answer: C

    Solution :

    Rate of change of momentum\[=F=m\frac{{{v}^{2}}}{r}\propto {{v}^{2}}\]


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