Principle of Conservation of Linear Momentum and Newton Laws of Motion
Principle of Conservation of Linear Momentum and Newton Laws of Motion
The principle of conservation of linear momentum follows form the Newton's laws of motion. We will show it by an example.
Suppose two object A and B, of mass and
are moving in the same direction with velocity
respectively
. Object A collides with object B and after time t both moves in the original direction with velocity
respectively.
The change in momentum of object A is
The force applied by B on A
or
The change in momentum of object B is
The force applied by A on B
By Newton's third law that is for each and every action there is equal and opposite reaction
Hence, Initial momentum = Final momentum
Or we can say that momentum of a system is conserved.
A metal ball with the momentum mv strikes a wall and bounces back. The change in the ball's momentum is ideally ________________ | |||
| Right Option : D | |||
| View Explanation | |||
A 40 kg men, running at 3 | |||
| Right Option : B | |||
| View Explanation | |||
Working of Rocket is based on the principle of __________ | |||
| Right Option : C | |||
| View Explanation | |||
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