mig is If the centre of the mass of three particles is at

Last updated: 6/27/2023

mig is If the centre of the mass of three particles is at rest and it is known that two of them are moving along different non collinear lines then the third particles must also be moving If the centre of mass of a system remains at rest then the net work done by all the forces acting on the system must zero If the speed of centre of mass of a system remains zero then the net external force acting on the system must be zero If the speed of centre of mass is changing then there must be some work being done by the internal forces on the system