The apprentice, or First book for mechanics, machinists, and engineers (1860)
Byrne, Oliver · New York, P. J. Cozans · leaf 47
pendicular to each other, these lines 0X and 0 Y are termed co-ordinate axes. Conceive the bodies to be connected with the axis 0 X,by the perpendicular rods A d, B 5, &c., then the sum of themoments of the bodies, tending to turn round the axis of 42 PRACTIQAL MECHANICS. O X, will be the same… … the point G becomes known. After the same manner thecentre of gravity may be determined, when the bodies arein space, by referring them to the co-ordinate planes. Ques. 17. The weights of three bodies A, B, C, are 10,17, and 9 lbs. respectively ; and their distances from 0 Xare 8, 16 and 28 inches,…
Mechanics, Applied
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