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

  • question_answer
    The kinetic energy of a body of mass 2 kg and momentum of 2 Ns is                        [AFMC 1998; DPMT 2000]

    A)                 1 J

    B)                    2 J

    C)                 3 J          

    D)                 4 J

    Correct Answer: A

    Solution :

                        \[E=\frac{{{P}^{2}}}{2m}=\frac{{{(2)}^{2}}}{2\times 2}=1J\]


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