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JEE Main & Advanced Physics NLM, Friction, Circular Motion Question Bank Conservation of Linear Momentum and Impulse

  • question_answer
    A body of mass 0.25 kg is projected with muzzle velocity \[100\,m{{s}^{-1}}\] from a tank of mass 100 kg. What is the recoil velocity of the tank                                    [AFMC 1996]

    A)             \[5\,m{{s}^{-1}}\]   

    B)             \[25\,m{{s}^{-1}}\]

    C)             \[0.5\,m{{s}^{-1}}\]

    D)               \[0.25\,m{{s}^{-1}}\]

    Correct Answer: D

    Solution :

                    Using law of conservation of momentum, we get             \[100\times v=0.25\times 100\] Þ \[v=0.25\,m/s\]


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