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· Newton's First Law ( Law of Inertia )
· Newton's Second Law (Law of Resultant Force )
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Current Location > Physics Formulas > Mechanics > Newton's Third Law (Law of Actions and Reaction )

Newton's Third Law (Law of Actions and Reaction )

"For every action done to an object, there is an equal and opposite reaction."

Based on the law we have:
Δp1 = -Δp2

For constant mass, the following formula is valid:
F1 = -F2