BCECE Engineering BCECE Engineering Solved Paper-2012

  • question_answer
    If the momentum of a body is increased by n times, then its kinetic energy increases

    A)  \[n\]times         

    B)         \[{{n}^{2}}\]times

    C)  \[2n\]times      

    D)         \[\sqrt{n}\]times

    Correct Answer: B

    Solution :

    We know that, \[KE=\frac{{{p}^{2}}}{2m}\] i.e.,        \[KE\propto {{p}^{2}}\] If p is increased n times, then KE will increased by \[{{n}^{2}}\]times.


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