Barton, Edwin H. (Edwin Henry), b. 1858 · London, Macmillan and Co., limited · leaf 60
for any case whatever, but is specially good fortwo or more components whose periods are different. Whenthe periods are equal the polygon method is quicker. Weshall illustrate its use by compounding two vibrationswhose periods are as 2:1. Each component must be repre-sented on the same scale by its… … Fig. 12.—Composition of S.H.M.s by Displacement Curves. ment curve of the vibration which results from the com-position of the two given simple harmonic motions. The method is illustrated in Fig. 12, in which the thinlines represent the components and the thick line theresultant. • 28. Analytical…
Sound
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