Elements of mechanics: for the use of colleges, academies, and high schools (1859)
Peck, William G. (William Guy), 1820-1892 · New York, A. S. Barnes & Burr · leaf 85
the case when the centre of gravity continues in the same horizontal plane on being slightly disturbed.4* &y» ox ip Fig. 47. 82 MECHANICS. Let A be a sphere, supportedby a horizontal axis OP passing q through its centre of gravity.Then, in whatever position it maybe placed, it will have no… … Fig. 49. If a wheel, or other solid, be mounted on a horizontal axis,about which it is free to turn, the centre of gravity not lyingon the axis, it will be in stable equilibrium, when the centre of•gravity is directly below the axis; and in unstable equi-librium when it is directly above the axis.…
Mechanics
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