Q: What is necessary condition for the conservation of momentum?

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A necessary condition for the conservation of momentum is that there are no external forces acting on the system. This means that the total momentum of the system will remain constant before and after a collision or interaction between objects.

Always. There are no expections to the conservation of momentum.

The momentum of two objects after a collision is explained by the law of conservation of momentum, which is derived from Newton's third law of motion. This law states that the total momentum before a collision is equal to the total momentum after the collision in the absence of external forces.

it works on the basis of conservation of linear momentum

The conservation of momentum states that in a closed system, the total momentum before an interaction is equal to the total momentum after the interaction, as long as no external forces are present. This principle is based on the law of inertia and is a fundamental concept in physics.

There are many laws of conservation. Some of the better-known ones are the law of conservation of energy, of momentum, and of rotational momentum.There are many laws of conservation. Some of the better-known ones are the law of conservation of energy, of momentum, and of rotational momentum.There are many laws of conservation. Some of the better-known ones are the law of conservation of energy, of momentum, and of rotational momentum.There are many laws of conservation. Some of the better-known ones are the law of conservation of energy, of momentum, and of rotational momentum.

When two vehicles collide and come to a stop, the total momentum of the vehicles before the collision is equal to the total momentum after the collision, in accordance with the law of conservation of momentum.

Conservation laws suggest that energy, matter, and momentum cannot be created or destroyed but can only change forms or be transferred between objects. Conservation of energy states that the total energy in a closed system remains constant. Conservation of matter indicates that the total mass in a closed system is constant. Conservation of momentum asserts that the total momentum of an isolated system remains constant in the absence of external forces.

The momentum before and after is the same, due to the Law of Conservation of momentum. Thus if you calculate the momentum before, then you have the after momentum or vice-versa.

There are several conservation laws in physics, and many of them tell an astronomer what is, and what isn't, possible. This can help explain how certain things happen, or even predict what will happen. Among the laws of conservation that are relevant in astronomy are: conservation of mass; conservation of energy; conservation of momentum; conservation of rotational momentum; conservation of charge.

A closed system

The law of conservation of momentum states that the total momentum of a closed system remains constant if no external forces are acting on it. Momentum itself is the product of an object's mass and velocity. Therefore, the relationship between momentum and the law of conservation of momentum is that the total momentum of a system before a collision or interaction must be equal to the total momentum after the collision or interaction.