5-5 NEWTON'S SECOND LAW All the definitions, experiments, and observations that we have described so far can be summarized in a simple vector equation, which is called Newton's second law of motion:
(n) (physics) the law that states any two bodies attract each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them, Syn.Newton's law of gravitation
(n) (physics) the theory that any two particles of matter attract one another with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them, Syn.theory of gravity, Newton's theory of gravitation, gravitational theory
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