What will be the velocity of the centre of mass, when the total external force on the system is zero ?

If net external force acting on the system is zero then

If net external force acting on the system is zero then

To determine the motion of the centre of mass of a system, knowledge of internal forces of the system is required. For this purpose we need not to know the external forces on the system.

To determine the motion of the centre of mass of a system, knowledge of internal forces of the system is required. For this purpose we need not to know the external forces on the system.

The velocity of centre of mass of the system remains constant, if the total external force acting on the system is.

The velocity of centre of mass of the system remains constant, if the total external force acting on the system is.

Velocity Of Centre Of Mass Of System