Allen, Charles Ricketson, 1862- [from old catalog] · New York, H. Holt and company · leaf 176
tudes of A and Of COMPOSITION OF FORCES. 163 EXPERIMENT 2. Apparatus.—Four spring-balances; stout string; nails; etc. Object.—To find two forces that, if applied to one pointat an angle to each other, will produce the same effect as asingle given force applied to the same point.… … D, A and B pulled at an angle. See if their combinedeffect can be made to bring a to the point where it waswhen 0 and D alone acted on it. Make several trials witha view to finding out whether more than one combinationof A and B can take the place of D. Eecord in each casethe balance readings, and…
Physics
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