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Mission NL12 Newton's Third Law

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 The Question

In baseball, the baseball strikes the catcher's mitt and is stopped due to the marvels of Newton's third law. Identify the two letters corresponding to the action-reaction FORCE pairs which are responsible for the stopping of the baseball.

 Physics Rules

Newton's Third Law:
For every action there is an equal and opposite reaction.

 Think About It

Action-reaction force pairs help explain why objects start up and slow down. In the case of a baseball, there is the interaction between the catcher's mitt and the ball. Like any interaction, it is a mutual interaction between two objects that results in equal forces on both objects directed in opposite directions.
 
To answer this question correctly, look for the pair of action-reaction interactions between catcher's mitt and ball. The action and reaction statements should involve these same two objects. And the interactions should be directed in opposite directions.

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