Martin, Louis Adolphe, 1880- · New York, J.Wiley & Sons, Inc.: [etc. etc.] · leaf 92
the pulleysmay be neglected, i.e., all,forces acting tangent to thepulleys may be assumed topass thru their centers. Thisis usually done in practicewhen the diameters of thepulleys, as compared to the dimensions of the members,are small. Exercise 103. Find graphically the reactions of theabutments… … Fig. s6 76 APPLIED STATICS Exercise io6. What effect has the position of the pulleyA (Fig. 56) upon the forces acting upon the various membersof the crane ? Large cranes for heavy work are usually designed sothat they may be treated as ideal frames, in so far as the weight of the mem-bers is…
Mechanics
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