Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 86
umference ofwheel = W X circumference ofaxle. Let the radii be R and r, respectively; the circumfer-ences will be 27rR and 27rr, and thereforeF X 27rR - W X 27rr,or FR = Wr, W Rand y- = —, the mechanical advantage. This result can also be seen from Fig. 88. The Avheel andaxle turn about the centre… … 89. Examples of Wheel and Axle. The windlass (Fig. 89)is a coininon example, but, in place of aM^heel, handles are used. Forces areapplied at the handles and the bucketis lifted by the rope, which is woundabout the axle. 11 F = applied force, and W = weight i-n, ^ W length of crankhited, ^ ^ -~^ J^…
Physics
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