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  3. JAMIA MILLIA ISLAMIA

JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2012

  • question_answer
        Two bodies of different masses of 2 kg and 4 kg moving with velocities 2 m/s and 10 m/s towards each other due to mutual gravitational attraction. What is the velocity of their centre of mass?

    A)  5 m/s                                   

    B)  6 m/s

    C)  8 m/s                                   

    D)  Zero

    Correct Answer: D

    Solution :

                    As gravitational forces of attraction are mutual, centre of mass is not affected (in the absence of external force). Velocity of centre of mass is zero.


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