Action and Reaction

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“This will be understood, when we consider that the reaction of b is just equal to the action of a, and that each of the other balls, in lke manner, ac, and react, o n the other, until the motion of a arrives at f, which, having no impediment, or nothing to act upon, is itself ut in motion.” -Comstock 1850


J. L. Comstock A System of Natural Philosophy: Principles of Mechanics (: Pratt, Woodford, and Company, 1850) 40


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