Introductory course of natural philosophy for the use of schools and academies. Ed. from Ganot's popular physics. By William G. Peck (1869)
Ganot, Adolphe, 1804-1887, Peck, William Guy, 1820-1892 · New York A.S. Barnes · leaf 38
r is repre-sented in Fig. 15. The hand is the power, the weight P isthe resistance, and the fixed point C is the fulcrum. Examples. What is the advantage of Machines t Example. ( 30.) What is aLever? How many classes? Give examples of each class. MECHAKICAL PRINCIPLES. 35 Lever of the second… … Fig. 16. Lever of the third class.—In this class the fulcrum is be-yond both the power and the resistance, and nearest thepower, as shown in Fig. 17. In every class of lever, the distances from the fulcrum, tothe power and resistance, are called Lever Arms. In eachof the figures in this article, CB…
Physics
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