A charge particle moves towards another charged particle. Under what conditions the total momentum and the total energy of the system conserved ?

A charge particle moves towards another charged particle. Under what c

1.	A charge particle moves towards another charged particle. Under what conditions the total momentum and the total energy of the system conserved ?
Answer» Solution :Coulomb force is ACTING in between the charged particles.Internalforce is a conservation force. If no external force of the work done by external forces were then the mechanical energy of the system and ALSO a lite mementum also REMAINS CONSTANT.