Explain the law of conservation of linear momentum with suitable example
Answers
Answer:
Two bodies of mass M and m are moving in opposite directions with the velocity . if they collide and move together after the collision , we have to find the velocity of the system . since there is no external force acting on the system of two bodies , momentum will be conserved.
ex: the motion of rockets is obeyed by the law of conservation
of linear momentum.
Answer:
The law of conservation of linear momentum is a fundamental principle of nature. according to this,
If no external force is applied on a closed system of bodies, then the total momentum of that system remains constant. One consequence of this law is that the center of mass of any system of objects will continue to move at a constant velocity unless an external force is applied to it.
A special feature of momentum is that it is conserved in all conditions - even in collisions, and in the case of motion caused by explosive forces. Whereas kinetic energy is not conserved in case of a collision if the collisions are inelastic. Since momentum is conserved, this fact is used to find the velocity of objects after a collision.
Example of conservation of linear momentum:
A Gun's Recoil: When a bullet is shot from a gun, both the bullet and the gun are initially at rest, with zero total momentum. When a bullet is fired, it accelerates forward. As a result of conservation momentum, the cannon acquire a backward momentum.