A text book of elementary mechanics, for the use of colleges and schools (1881)
Dana, Edward Salisbury, 1849-1935 · New York, J. Wiley & sons · leaf 273
arising from this assumption maybe neglectedwithout destroying the value of the result. Let aa (Fig. 189) represent the arc of vibration of thesimple pendulum, whose length (r) is CB. Take the straight line A A equal to aa1,and so that every point m on thearc has a corresponding point Mon the… … when AB = BA = a, and BM= %. Here, as remarked above,a and z are arcs, not chords. Upon AA9 as a diameter de-scribe the circle ANA, and sup-pose a particle to move uniformlyA about the semi-circumferenceANA with the constant velocity ay—. Then, since the dis- FiG. 189. tance passed over is na, the…
Mechanics
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