Question

Explain conservation of momentum?​

Answer 1

One of the most powerful laws in physics is the law of momentum conservation. ... For a collision occurring between object 1 and object 2 in an isolated system, the total momentum of the two objects before the collision is equal to the total momentum of the two objects after the collision.

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Answer 2

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In Newtonian mechanics, linear momentum, translational momentum, or simply momentum (pl. momenta) is the product of the mass and velocity of an object.

It is a vector quantity, possessing a magnitude and a direction.

If m is an object's mass and v is its velocity (also a vector quantity), then the object's momentum is: =m.

In SI units, momentum is measured in kilogram meters per second (kg⋅m/s).