In a system of two particles of masses $m_{1}$ and $m_{2}$,the first particle is moved by a distance $d$ towards the centre of mass. To keep the centre of mass unchanged,the second particle will have to be moved by a distance:

  • A
    $\frac{m_{1}}{m_{2}} d$,towards the centre of mass.
  • B
    $\frac{m_{2}}{m_{1}} d$,away from the centre of mass.
  • C
    $\frac{m_{2}}{m_{1}} d$,towards the centre of mass.
  • D
    $\frac{m_{1}}{m_{2}} d$,away from the centre of mass.

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