Johnson's natural philosophy and key to philosophical charts : illustrated with 500 cuts; being reduced photographic copies of all the diagrams contained in the author's philosophical series of indestructible school charts ; for the use of schools and families (1878)
ch leaves24 pounds to be held by the two cords pass-ing around the pulley N, half of which, 12pounds, will be held by the cord passing overthe fixed pulley L. But these 12 poundsbeing again divided by the pulley T, will beheld by the 6 pounds of power; and, the powerhaving already taken up 6 pounds… … MECHANICAL POWERS. Inclined Plane. 83. Figure 41.—Inclined plane.—An inclined plane is oneinclined to a horizontal plane. In every such plane three parts are tobe considered, height, length, and base, for upon the relative proportionsof these depends its power. The advantage gained by its use is…
Physics · Astronomy
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