(A) : The rate of change of total momentum of a many particle system is proportional to the sum of the internal forces of the system.(R ) : Internal forces can change the kinetic energy and the momentum of the system.

(A) : The rate of change of total momentum of a many particle system i

1.	(A) : The rate of change of total momentum of a many particle system is proportional to the sum of the internal forces of the system.(R ) : Internal forces can change the kinetic energy and the momentum of the system.
Answer» Both (A) and (R ) are true and (R ) is the CORRECT EXPLANATION of (A) Both (A) and (R ) are true and (R ) is not the correct explanation of (A) (A) is true but (R ) is false (A) is false and (R ) is false Answer :D