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 17
we get a curve ABC, Fig. 4, which isusually called the effort curve. Consider two points B andC which are so close together that the resultant effort orforce E may be regarded as constant over the length. Thenthe work done over this length will be equal to constantforce X distance moved = E X a; =… … SPACE OR DISTANCE (FEET) Fio. 4.—Effort and Work Curves. comparatively long lengths the statement is only approximate.If now we consider the whole base 0 H to be divided up intoshort lengths, the same argument will hold for each strip ofthe curve, so that, adding together these separate strips,…
Mechanics, Applied · Dynamics · Graphic methods
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