Merchant, F. W. (Francis Walter), 1855-1937, Chant, Clarence Augustus, 1865-1956 · Toronto : Copp Clark · leaf 82
Fjq. 77.—The steelyards. THE PULLEY 11 … 2. A hand-barrow (Fig. 78), with the mass loaded on it weighs 210pounds. The centre of gravity of the barrow and load is 4 feet from thefront handles and 3feet from the backones. Find theamount each mancarries 3. To draw a nailfrom a piece of woodrequires a pull of200 pounds. Aclaw-hammer isused,…
Physics
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