The apprentice, or First book for mechanics, machinists, and engineers (1860)
Byrne, Oliver · New York, P. J. Cozans · leaf 45
. Qfms. 15. A rope A D supports a uniform pole 0 D, rest-ing on the ground at 0, and supporting the weight W, sus-pended from D ; required the tension of the rope, when AD = 175 feet, 0 A = 40 feet, 0 D = 145 feet, W = 50cwt., and weight of 0 D = 10 cwt? In this example 0 D may be regarded as a… … rope, will be equal to the sum of the moments of W and theweight of the pole, that is Tension of cord X 0 P = W X 0 N + Wt. of pole X 0 R. To find the perpendiculars, OP, DN, CR, in order to do this in the most simple manner, it will beobserved, that since the three sides of the triangle A 0 Dare…
Mechanics, Applied
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