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J & K CET Engineering J and K - CET Engineering Solved Paper-2011

  • question_answer
    A batsman hits back a ball straight in the direction of the bowler without changing its initial speed of\[12\text{ }m/s\]. If the mass of the ball is \[0.15\text{ }kg\]the impulse imparted to the ball is

    A)  \[36\text{ }Ns\]

    B)  \[3.6\text{ }Ns\]

    C)  \[0.36\text{ }Ns\]         

    D)  \[0.036\text{ }Ns\]

    Correct Answer: B

    Solution :

    Impulse = change in momentum \[=mv-(-mv)=2mv\] \[=2\times 0.15\times 12=3.6\,Ns\]


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