Barton, Edwin H. (Edwin Henry), b. 1858 · London, Macmillan and Co., limited · leaf 58
ch of period r and occur along YOY. Let the amplitudes and epoch anglesof one be b and /3, and of the other c and 7 respectively.It is required to find the resultant motion of a pointsimultaneously obeying both these vibrations. In otherwords, we need an expression for a displacement which isat… … 40 SOUND CHAP. II Lay off from P, PE of length c and at the angle 7 with OX.Draw PM, EN parallel to OX, and meeting OY in M and N,also join OE. Then as OE rotates about 0 with angularvelocity co = 2tt/t, N shall execute along YOY the motionwhich is the resultant of the two given component…
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