Give two Examples of law of conservation of momentum
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law of conservation of momentum. Newton's cradle is an example of the Law of Conservation of Momentum. Law of conservation of momentum is defined as a principle in physics that says that some parts in an isolated system remaining steady and unchanging over time even when others are moving.
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Example:
A bullet of mass 20 g is fired from a gun with a muzzle velocity 100 ms-1.The mass of the gun is 5 kg.Then the recoil of the gun will be – 0.4 ms-1.The negative sign indicates that the gun recoils i.e moves in the backward direction opposite to the motion of the bullet with a velocity of 4 ms-1.
Rockets and jet engines also work on the same principle.In these machines, hot gases produced by burning of fuel rush out with large momentum.The machines gain an equal and opposite momentum.This enables them to move with very high velocities.
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A bullet of mass 20 g is fired from a gun with a muzzle velocity 100 ms-1.The mass of the gun is 5 kg.Then the recoil of the gun will be – 0.4 ms-1.The negative sign indicates that the gun recoils i.e moves in the backward direction opposite to the motion of the bullet with a velocity of 4 ms-1.
Rockets and jet engines also work on the same principle.In these machines, hot gases produced by burning of fuel rush out with large momentum.The machines gain an equal and opposite momentum.This enables them to move with very high velocities.
....................☺☺
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