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

  • question_answer
    A ball is dropped from height 10 m. Ball is embedded in sand 1 m and stops, then    [AFMC 1996]

    A)             Only momentum remains conserved

    B)             Only kinetic energy remains conserved

    C)             Both momentum and K.E. are conserved

    D)             Neither K.E. nor momentum is conserved

    Correct Answer: A

    Solution :

                    Momentum of earth-ball system remains conserved.


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