Hall, Edwin Herbert, 1855-1938 · New York, H. Holt and company · leaf 83
by Fig. 40, where L reDresents the length of the incline; B base H height W weight of the body on the incline, applied straight downward from the centre of gravity of the body;W is the equal and opposite of IF;N represents the force exerted upon the body by the plane X, a force which is straight… … By comparing the dotted triangle with the triangle whosesides are L, B, and H we see that P : W (or IF) : : H: L, THE PARALLELOGRAM OF FORGES. 71 or PXL=WX H, P= Wx (H+L). EXPERIMENTS. Take apparatus No. XX and adjust it as indicated by Fig. 50, put-ting 7 oz. upon the pan, so that P= 7+ 1 = 8 oz.…
Physics
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