JEE Main & Advanced Physics NLM, Friction, Circular Motion Question Bank Self Evaluation Test - Laws of Motion

  • question_answer
    If n bullets each of mass m are fired with a velocity v per second from a machine gun, the force required to hold the gun in position is

    A) \[\left( n+1 \right)mv\]

    B) \[\frac{mv}{{{n}^{2}}}\]

    C) \[\frac{mv}{n}\]

    D) \[mnv\]

    Correct Answer: D

    Solution :

    [d] By Newton's second law of motion \[F=n\left( mv \right)=nmv\]


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