Total linear momentum of a system of particles is equal to ……………..of the system and velocity of ……… .

The angular momentum of a system of particles is conserved

Prove that the rate of change of total angular momentum of a system of particles is equal to the total torque acting on the system.

Angular momentum of the system of particles changes when

The momentum of a system is defined

The momentum of a system is conserved

Show that the total linear momentum of a system of particles is conserved in the absence of any external force. Also show that total linear momentum of the system is equal to the product of the total mass of the system and the velocity of its centre of mass.