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  1. Consider a system of two particles having masses m1 and m2. If the particle of mass m1 is pushed towards the centre of mass of particles through a distance d, by what distance would the particle of mass m2 move so as to keep the centre of mass of particles at the original position?
    1. m2
      d
      m1
    2. m1
      d
      m1 + m2
    3. m1
      d
      m2
    4. d
Correct Option: C

m1d1 = m2d2 ⇒ d2 =
m1d1
=
m1
d
m1m2



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