In a system two particles of masses m1 = 3kg and m2 is 2kg are placed at certain distance from each

In a system two particles of masses m1 = 3kg and m2 = 2kg are placed at certain distance from each other. The particle of mass m1 is moved towards the center of mass of the system through a distance 2cm. In order to keep the center of mass of the system at the original position, the particle of mass m2 should move towards the center of mass by the distance ____ cm.     (JEE-2024)