Question

State law of conservation of momentum give two illustrations in its support

Answer 1

ACCORDING TO THIS LAW , THE TOTAL MOMENTUM OF A SYSTEM OF OBJECTS REMAINS CONSERVED BEFORE AND AFTER THEIR INTERACTION OR COLLISION PEOVIDED THAT THERE IS NO EXTERNAL UNBALANCED FORCE ACTING ON THEM.

example:

while firing a bullet ,the guns should be held tight to the shoulder due to recoil of the gun.