A text-book of physics, largely experimental. On the Harvard college "Descriptive list of elementary physical experiments." (1891)
Hall, Edwin Herbert, 1855-1938, Bergen, Joseph Y. (Joseph Young), 1851-1917 · New York, H. Holt and Company · leaf 308
esolve this force by means of the parallelogram offorces (Chapter VII) into two components, a useful com-ponent parallel to the direction of motion of the car anda useless one at right angles with this direction. Observe that in such a case the product of the whole dis-tance by that component of… … FIG. 171. by F and the whole distance by D. we see from the simi- */ / larity of the two triangles that T : F : : S : D, whenceTXD=FXS. 286 PHYSICS. 239. Rate of Work: Horse-power, etc.—To express therate at which work is done by a machine or an animal wehave to tell the amount of work done in a…
Physics
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