Calculating angular velocity, angular acceleration, amd number of revolutions.?
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Hi All, I have this question on a practice test I was given. Just after a bit of help to start me off on the right track, with part C in particular. A ceiling fan starts from rest. ...show more
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Answer:
A) W = 15 rev/min = 150 *2pi / 60 secs = 5pi radians/sec B) Wf = Wi + at = at 5pi = a *30 a = pi/6 rad/s^2 C) Xf = Xi + (1/2)a * t^2 = (1/2)a * t^2 Xf = (1/2)pi/6 * 30^2 = 75pi rad revolution = 75pi / (2pi) = 75/2
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