Elements of graphic dynamics; an elementary textbook for students of mechanics and engineering (1919)
Andrews, Ewart S. (Ewart Sigmund) · London, Chapman and Hall, Ltd. · leaf 20
ce,1 = 1,000 lb.; polar distance, p = 2-5 actual inches. Then the work scale will be 1 = 2-5 X 10 x 1,000 = 25 000ft.-lb. D K should therefore be 3 in. Work against Resistance.—In every case that arises inpractice there is a force resisting the movement of a bodyunder the driving force or effort;… … Fig. 5. effort F to be exerted, tending to push the steamer forward;the resistance of the water and other external forces tendingto resist the forward motion of the steamer cause a resistanceforce S to be exerted in the opposite direction. If F is greaterthan S at any instant, work will be done…
Mechanics, Applied · Dynamics · Graphic methods
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