A textbook on mechanical and electrical engineering (1898)
International Correspondence Schools · Scranton : International Textbook Co., [1898-99] · leaf 374
es is called the coefficient of friction. ELEMENTARY MECHANICS. 349 If a weight IV, as in Fig. 15G, rests upon a horizontal plane, and has a cord fastened to it passing over a pulley «, from which a weight Pis suspended, then, if Pis just suffi- Pcient to start W, the ratio of P to W, or -,77, is… … Fig. 156. \i W =■ 100 pounds and P = 10 pounds, the coefficient of = .1. P 10 friction for this particular case would be -777 = -—-— W 100 948. Laws of Friction : — I. Friction is directly proportional to the perpendicu-lar pressure between the two surfaces in contact. II. Friction is independent…
Electrical engineering · Mechanical engineering
Internet Archive · Gerstein Library, University of Toronto · Public Domain Mark 1.0. Free to use for anything.
![An illustration from [Electric engineering.] (1902)](https://img.insideoutlibrary.com/img/200/ia-electricengineer02inte-332-183.webp)
