Hall, Edwin Herbert, 1855-1938 · New York, H. Holt and company · leaf 58
ravity.—In the experiments upon thelever thus far, the lever itself, whether a bar or a disk, hasbalanced, when left to itself without load. We have,therefore, not had to consider the weight of the lever itself.But many levers are used in such a way that their ownweight helps or hinders the… … instance. Fig. 24.Bore several small holes straight through the board,
Physics
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