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)
e Avhole length of the lever, and the power only onefifth of it; or 30 X 3 = G X 10; thus making the weight 6 and thepower 30. In this case the long arm (that to which the power is usuallyapplied) becomes the sliort arm, and the short arm becomes the longarm, whicli must be kept in mind when… … The conditions of equilibrium in such a system are, that the productof all the long arms multiplied by the power must equal the productof all the short arms multiplied by the weight; or 8x8x8X6 =2 X 2 X 3 X 384. Or the weight of the 1st lever (beginning next tothe power) becomes the power of the 2d…
Physics · Astronomy
Internet Archive · University of Connecticut Library · Public Domain Mark 1.0. Free to use for anything.
