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A system of two particles is having masses `m_(1)` and `m_(2)`. If the particle of mass `m_(1)` is pushed towards the centre of mass of particles through a distance d, by what distance the particle of mass `m_(2)` should be moved so as to keep the centre of mass of particles at the original position?

A

`frac(m_1)(m_1 + m_2) d`

B

d

C

`frac(m_1)(m_2)d`

D

`frac(m_2)(m_1)d`

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