Elementary natural philosophy : designed for high schools and academies (1881)
Griffin, La Roy F. (La Roy Freese), 1844-1916 · Philadelphia : Sower, Potts & Co. · leaf 36
upporting abody by a point directly over its centre of gravity, as thetruck by the point b, Fig. 23. In asimilar way, a body supported so thatthe line of direction falls at the middleof its base is in stable equilibrium.Any external force then raises the cen-tre of gravity, and after a few backand… … 98. in. Unstable Equilibrium is presented by a bodysuspended directly beneath the centre of gravity, as thetruck of Fig. 23 by the point c. Any external force tendsto cause the centre of gravity to descend through an arc,and the body assumes the position of stable equilibrium.A sphere loaded at the…
Physics
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