Martin, Louis Adolphe, 1880- · New York, J.Wiley & Sons, Inc.: [etc. etc.] · leaf 101
er the applied force) : it simply changesthe direction of the applied force. Exercise hi. Design a system of fixed pulleys by meansof which a horse walking on horizontal ground may raise abale of hay weighing 200 pounds from the ground to a ver- 82 ANALYTICAL STATICS tical height of 20 feet. Show… … Fig. 8,3 Fig. 84 Solution.—Fig. 83 shows all forces acting on the pul-ley, T representing the tension in the rope.Taking moments about C, IM=-Fr+Tr = o; .: F=T.From Fig. 84, IY = F cos d + F cos 0-W-w = oiW + ur F = 2 cos d Exercise 112. Find the force necessary to sustain a weightof 100 pounds by…
Mechanics
Internet Archive · Cornell University Library · Public Domain Mark 1.0. Free to use for anything.
