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Apply Newton's 3 law of motion to explain how 2 billiard balls moving toward each other at the same speed collide and move away from each other at the same speed as before?
Wiki User
∙ 14y ago
Newton's Third Law states that if object A (let's call it the cue ball) exerts a force on object B (let's call it the eight ball), then the eight ball will exert an equal and opposite force on the cue ball.
If the cue ball is in motion and heads toward the eight ball which is in motion toward the cue ball, they will collide. Both balls will exert the same amount of force on each other, but in opposite directions (Newton's 3rd law). Since both balls have the same mass and have the same magnitude of force acting on them, they will both accelerate at the same rate (this is actually now entering into Newton's 2nd law). a=F/m
Wiki User
∙ 14y ago
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