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J & K CET Medical J & K - CET Medical 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 m/s. If the mass of the ball is 0.15 kg the impulse imparted to the ball is

    A)                  36 Ns                                   

    B)  3.6 Ns

    C)                  0.36 Ns                

    D)  0.036 Ns

    Correct Answer: B

    Solution :

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


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