Question

Define Newton's 3rd law of motion and law of conservation of momentum.​

Answer 1

Answer:

Isaac Newton's third law of motion states that every action has an equal and opposite reaction.

Law of conservation of momentum states that if there is a collision between two bodies, the total momentum of the two bodies before the collision is equal to the total momentum after collision.

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Answer 2

$\sf\star\bold\pink{{QUESTION:-}}$

✓✓Define Newton's 3rd law of motion and law of conservation of momentum.

$\sf\star\bold\blue{{ANSWER:-}}$

$\sf\star\bold\purple{{Newton's\:3rd\:law\:of\:motion:-}}$

$\sf\: STATEMENT:-$

To every action is an equal and opposite reaction.

• force always acts in pair.

• Action and reaction acts on two different objet.

$\sf\star\bold\green{{Law\:of\: conservation\:of\: momentum:}}$

According to law of conservation of momentum-total momentum of a system/object remains constant .If no external unbalanced force acts on the system/object.

In other words If net force acting on body is zero then momentum of the body/system before collision is equal to momentum of the body in collision.