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MGIMS WARDHA MGIMS WARDHA Solved Paper-2004

  • question_answer
    Two bodies of mass m and 4m have equal kinetic energy. What is the ratio of their momentum?

    A) 1 : 4                                       

    B) 1 : 2

    C) 1:1                                         

    D) 2 : 1

    Correct Answer: B

    Solution :

    Momentum \[P=\sqrt{2m{{E}_{k}}}\] Both bodies have equal kinetic energy So,         \[\frac{{{p}_{1}}}{{{p}_{2}}}=\sqrt{\frac{{{m}_{1}}}{{{m}_{2}}}}\]                 \[\frac{{{p}_{1}}}{{{p}_{2}}}=\sqrt{\frac{m}{4m}}\]                 \[{{p}_{1}}:{{p}_{2}}=1:2\]


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