Manipal Medical Manipal Medical Solved Paper-2009

  • question_answer
    A particle of mass m at rest is acted upon by a force P for a time t. Its kinetic energy after an intervals is

    A)  \[\frac{{{p}^{2}}{{t}^{2}}}{m}\]

    B)  \[\frac{{{p}^{2}}{{t}^{2}}}{2m}\]

    C)  \[\frac{{{p}^{2}}{{t}^{2}}}{3m}\]

    D)  \[\frac{pt}{2m}\]

    Correct Answer: B

    Solution :

    \[K=\frac{{{p}^{2}}}{2m}=\frac{{{p}^{2}}{{t}^{2}}}{2m}\] \[\left( \because F=P=\frac{p}{t} \right)\]


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