JEE Main & Advanced Physics Work, Energy, Power & Collision / कार्य, ऊर्जा और शक्ति Question Bank Conservation of Energy and Momentum

  • question_answer
    A light and a heavy body have equal kinetic energy. Which one has a greater momentum? [NCERT 1974; CPMT 1997; DPMT 2001]

    A)                 The light body

    B)                 The heavy body

    C)                 Both have equal momentum

    D)             It is not possible to say anything without additional information

    Correct Answer: B

    Solution :

                        \[P=\sqrt{2mE}\] if E are equal then \[P\propto \sqrt{m}\] i.e. heavier body will possess greater momentum.


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