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JEE Main & Advanced Physics Work, Energy, Power & Collision / कार्य, ऊर्जा और शक्ति Question Bank Perfectly Inelastic Collision

  • question_answer
    A body of mass m moving with a constant velocity v hits another body of the same mass moving with the same velocity v but in the opposite direction and sticks to it. The velocity of the compound body after collision is [NCERT 1977; RPMT 1999]

    A)             v

    B)               2v

    C)             Zero    

    D)             v/2

    Correct Answer: C

    Solution :

                    Initial momentum of the system = \[mv-mv=0\] As body sticks together \ final momentum = \[2mV\]             By conservation of momentum \[2mV=0\]\ V = 0


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