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JEE Main & Advanced Physics Rotational Motion Question Bank Self Evaluation Test - System of Particles Rotational Motion

  • question_answer
    Two objects P and Q initially at rest move towards each other under mutual force of attraction. At the instant when the velocity of P is v and that of Q is 2v, the velocity of centre of mass of the system is

    A) v

    B) 3v   

    C) 2v

    D) zero

    Correct Answer: D

    Solution :

    [d] Centre of mass is at rest \[\therefore \,\,\,{{V}_{CM}}=0\]


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