Elements of mechanics: treated by means of the differential and integral calculus (1887)
Peck, William G[uy], 1820-1892. [from old catalog] · New York, Chicago, A. S. Barnes & company · leaf 119
o one-half the resistance. If, therefore,the resistance of the fixed point C be replaced by a forceequal to P, the equilibrium will be undisturbed. If the two branches of the en-veloping cord are oblique to eachother, the condition of equilibriumwill be somewhat modified. Sup-pose the resistance of… … Fig. 11. 2 Pcosp = B. Draw the chord AB between the points of contact of thecord and pulley, and denote its length by c; draw, also,the radius OB. Then, since OB is perpendicular to ABand BP to OB, the angle AB 0 will be equal to one halfof the angle A CB, or equal to 9. Hence, coscp \c -f- r = —-2…
Mechanics
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