Question

URGENT What does Newton's third law say about why momentum is conserved in collisions?


1. Unequal forces act for unequal times, so the change in momentum for both objects must be unequal.


2. Equal forces act in equal times, so the change in momentum for both objects must be equal.


3. Equal forces act for unequal times, so the change in momentum for both objects must be equal.


4. Unequal forces act for unequal times, so the change in momentum for both objects must be equal.

Answer 1

Newton's third law of motion is naturally applied to collisions between two objects. In a collision between two objects, both objects experience forces that are equal in magnitude and opposite in direction.For such a collision, the forces acting between the two objects are equal in magnitude and opposite in direction

Answer 2

The correct answer is :
2. Equal forces act in equal times, so the change in momentum for both objects must be equal.

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