The elements of mechanics, comprehending statics and dynamics (1848)
Young, J. R. (John Radford), 1799-1885, Williams, John D., ed · Philadelphia, E.H. Butler & Co · leaf 116
ON THE MECHANICAL POWERS. 101 the direction of the power is parallel to the plane, the machine af-fords the greatest mechanical advantage possible, for then COS. s = l and P = W sin. i,so that in this case the power is to the weight as the altitude of theplane to its length. But when the direction…
Mechanics, Analytic
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