Question

State law of conservation of momentum
А Also state the expression for momentum
of a system of two bodies before and after
colloison

please it's urgent ​

Answer 1

Answer: The Law of Action-Reaction (Revisited)

Momentum Conservation Principle

Isolated Systems and Collision Analysis

Collision Analysis and Momentum Problems

Using Equations as Guides to Thinking

Momentum Conservation in Explosions

One of the most powerful laws in physics is the law of momentum conservation. The law of momentum conservation can be stated as follows.

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. That is, the momentum lost by object 1 is equal to the momentum gained by object 2.

The above statement tells us that the total momentum of a collection of objects (a system) is conserved - that is, the total amount of momentum is a constant or unchanging value. This law of momentum conservation will be the focus of the remainder of Lesson 2. To understand the basis of momentum conservation, let's begin with a short logical proof.

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Answer 2

Answer:

The conservation of momentum states that, within some problem domain, the amount of momentum remains constant; momentum is neither created nor destroyed, but only changed through the action of forces as described by Newton's laws of motion.

The law of momentum conservation can be stated as follows. 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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