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NEET Sample Paper NEET Sample Test Paper-82

  • question_answer
    A ball with initial momentum p collides normally with a rigid wall. If p' is its linear momentum after the perfectly elastic collision, then

    A) \[\operatorname{p}' = - 2p\]                  

    B) \[\operatorname{p}= 2p\]

    C) \[\operatorname{p}'= p\]                       

    D) \[\operatorname{p}' =-p\]

    Correct Answer: D

    Solution :

    As collision is perfectly elastic, the ball re bounce with the same velocity \[\therefore \,\,\,\,\,\,\,\,\,\,\,\,\,p'=-\,p\]


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