A "Double Satellite" Is Launched into Space

Multiple Choice

A "double satellite" is launched into space.It consists of a satellite of mass m and another satellite of mass 5m.The connecting mechanism of these satellites is an explosive bolt and a compressed spring,both of negligible mass.The bolt is exploded and the satellites drift apart having been pushed by the spring.When the less massive satellite has moved a distance of 2.5 m from the center of mass of the double satellite,how far away from it is the satellite of greater mass?

A) 3.0 m
B) 2.0 m
C) 0.5 m
D) 4.5 m