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AIIMS AIIMS Solved Paper-2011

  • question_answer
    A body of mass 0.5 kg is projected under gravity with a speed of 98 m/s at an angle of 60° with the horizontal. The change in momentum (in magnitude) of the body is

    A)  24.5 N-s                              

    B)  49.0 N-s              

    C)         98.0 N-s              

    D)         50.0 N-s

    Correct Answer: B

    Solution :

    Initially body is at rest. \[\therefore \]Initial momentum \[=0\] \[+ve\] Final momentum \[+ve\] \[-ve\] Change in momentum \[i=\frac{E}{R+r}\] \[=\frac{2.5}{1+1+0.5}=1amp\]


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