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 83
transfer is not necessary. The proof of this construction is as follows : Considerany elemental arc—say de—oi the polar sum curve. 4a Ais the radius of this arc and is so normal to it. Moreover,O 4a is at right angles to 0 h, so that 0 4a represents thepolar slope at h of the curve ahc . . . g,m.… … Fig, 37. POLAR DIAGRAMS 73 then the radius vector scale of the polar sum curve will be ,„ 2x11 1 = —- units. TT Special Case of Constant Acceleration.—If the ac-celeration of a point is constant, the polar acceleration diagramwill be a circle with centre at the origin, as shown in Fig. 38.But from…
Mechanics, Applied · Dynamics · Graphic methods
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