A system of `N` particles is free from any extenal forces.
(a) Which of the following is true for the magnitude of the total momentum of the system?

A system of N particles is free from any external forces Which of the following must be true for the sum of the magnitudes of the momenta of the individual particles in the system ?

What is the total momentum of the system of particle?

(b) Which of the following must be true for the sum of the magnitudes of the momenta of the individual particles in the system?

A system of particles is free from any external force vec v and vec a be the velocity and acceleration of the centre of mass, then it necessarily follows that :

Due to the action of internal forces of the system, the total linear momentum of the system is

An isolated system consists of two charged particles of equal mass. Initially the particles are far apart, have zero potential energy, and one of the particles has non-zero speed. If the radiation is neglected, which of the following is true for the total enrgy of the system at any later time ?

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.

The sum of all the external forces on a system of particles is zero. Which of the following must be true for the system of particles ?