Third-class Lever

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“In the third and last kind of lever, the weight is placed at one end, the fulcrum at the other end and the power between them, or the hand s between the fulcrum and the weight.” -Comstock 1850




J. L. Comstock A System of Natural Philosophy: Principles of Mechanics (: Pratt, Woodford, and Company, 1850) 74


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