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The elements of natural philosophy : copiously illustrated by familiar experiments and containing descriptions of instruments, with directions for using : designed for the use of schools and academies (1856)

Sprague, A. W. (Alfred White), 1821-1891 · Boston : Phillips, Sampson & Company · leaf 50

An illustration from The elements of natural philosophy : copiously illustrated by familiar experiments and containing descriptions of instruments, with directions for using : designed for the use of schools and academies, 1856, leaf 50
s a cask for instance, find its weight unequal tohis strength, he may accomplish his object by causing the bodyto be supported in part by an inclined surface, and exerting hisforce in a direction parallel to this inclined surface. Thus, in Explain tlie fixed and movable pulley. In these… … 44 THE INCLINED PLANE. loading a barrel into a wagon, a plank is laid with its lower endresting upon the ground, and the barrel rolled up this by aforce much less than would be required to. raise it perpendicu-larly to the same elevation. The plank in this case forms aninclined plane. Fig. 23…

Physics

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