by rollingthrough a small angle so as to come into the position BAC—through P.the new point ofcontact draw Pif vertical, meeting A! 0 in M. Then accord-ing as A!G is < or > A!M, the weight of BAG will tendto make it return towards or recede further from its originalposition of equilibrium by… … Now OM OM sin d sin 6 OP ,m{9 + 4>) ^.^fR+zA li + r in the limit when 0 is taken very small; P.M. 98 OF THE CENTRE OF GEAVITT .-. 0M=- .: AM=r-0M=r- JX + r Rr M + r E+rand the equilibrium is stable or unstable according as h is < or > AM, i.e. ho-73 . it + r Or, as it may be written, h r…
Mechanics
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