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 84
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… … Fig. 38. equal time intervals ; so that the polar velocity diagram willbe such that for equal angles (time intervals) the increaseof length of the radius vectors (velocities) is equal. But thecurve that has this property is known as the spiral of Archi-medes, so that we get the result that the…
Mechanics, Applied · Dynamics · Graphic methods
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