AIIMS AIIMS Solved Paper-2002

  • question_answer
    The kinetic energy of a body becomes four times its initial value. The new linear momentum will be:

    A)  eight times that of initial value

    B)  four times that of initial value

    C)  twice of the initial value

    D)  remain as the initial value

    Correct Answer: C

    Solution :

                    For a body of mass m, moving .with velocity v, momentum (p) = mass (m) \[{{V}_{e}}=2{{V}_{0}}\] velocity (v) Also kinetic energy \[{{I}_{1}}\] Since m is constant, when kinetic energy becomes four times. Velocity becomes twice of its initial value. New linear momentum is given by \[{{I}_{2}}\] Hence, new linear momentum becomes twice of the initial value.


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