Notes and examples in mechanics; with an appendix on the graphical statics of mechanism; (1903)
Church, Irving P. (Irving Porter), 1851-1931 · New York, J. Wiley & sons; [etc., etc.] · leaf 60
it agraduated arc, so that each of these heights can be computedfrom the observed angle and known length of cord). Supposingeach ball to rebound on its own side of O and the heiglits reached,H^ and^2, to be noted or computed, their velocities at O im-mediately after impact must have been F, = —… … SPRING BETWEEI^ TWO BALLS. 51 Of course e is always less than unity, and due regard must bepaid to the signs of the velocities in making the computations. 49. Action of a Spring between Two Balls (Fig. 57).—In thesecond period of a direct central impact(period of expansion, or restitution) the…
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