A textbook on mechanical and electrical engineering (1898)
International Correspondence Schools · Scranton : International Textbook Co., [1898-99] · leaf 599
ure upon each support ? Neglect weight of plate. (449) Find the resultant of theforces acting in Fig. 2—all actingtowards the same point. (450) The distance betweenthe center line of the handle andthe axis of the drum in Fig. 143is 12 in., and the diameter of thedrum is \.\ in. The free end ofthe… … ELEMENTARY MECHANICS. 577 (451) {a) What is the velocity ratio in the last example ?(d) If the weight actually lifted by a force of 30 lb, was790 lb., what is the efficiency ? a -! (^) ^^• ^^- ( {d) 82.29^. (-452) It is desired to raise a weight by means of a pulleyfixed overhead, the free end of…
Electrical engineering · Mechanical engineering
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