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RAJASTHAN PMT Rajasthan - PMT Solved Paper-2010

  • question_answer
    A cricket ball of mass 250 g collides with a bat with velocity 10 m/s and returns with the same velocity within 0.01 s. The force acted on bat is

    A)  25 N                                     

    B)  50 N

    C)  250 N                   

    D)         500 N

    Correct Answer: D

    Solution :

    The force acted on bat                 \[F=m\cdot a\] or            \[F=m\cdot \left( \frac{dv}{dt} \right)\]                     \[=\frac{0.25\times [(10)-(-10)]}{0.01}\]                     \[=25\times 20=500\,\,N\]


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