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JAMIA MILLIA ISLAMIA Jamia Millia Islamia Solved Paper-2005

  • question_answer
        Two identical particles move towards each other with velocity 2v and v respectively. The velocity of centre of mass is

    A)  v                                            

    B)  v/3  

    C)  v/2                       

    D)  zero

    Correct Answer: C

    Solution :

                    By the conservation of linear momentum \[(m+m)v=m.2v-mv\]                                 \[2mv=mv\]                                 \[v=\frac{v}{2}\]


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