Hale, Joseph W. L. (Joseph Woodwell Ledwidge), 1886- · New York [etc.] McGraw-Hill book company · leaf 53
um, that is, at the center of gravity of thewhole lever. The equation then becomes 200 X 8 + 12 X 12 = F X 241744 = 24F72.6 lb. = F 38 MECHANICS AND ALLIED SUBJECTS In Fig. 48, the lever weighs 12 lb. and the equationbecomes 12 X 12 + 200 X 24 = 8F 4944 = SF 6181b. = F PROBLEMS 22. In a lever of… … 24. Find the force F required to lift the weight of 200 lb. onthe wheelbarrow as shown in Fig. 49. 26. From Fig. 50 find the force which can be exerted at F throughthe air cylinder and system of levers shown. ,i 12DI am.60-lb.persq.m, CO Fulcrum Fig. 50. ^1. —>• ^--^fulcrum 26. From Fig. 51,…
Mechanics, Applied
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