Posted by **javane** on Friday, November 26, 2010 at 1:49pm.

A propeller slows from 490 rev/min to 177 rev/min in 3.50 s. What is its angular acceleration?

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**Writeacher**, Friday, November 26, 2010 at 1:53pm
http://www.jiskha.com/display.cgi?id=1290754007

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**drwls**, Friday, November 26, 2010 at 1:55pm
Divide the angular velocity change in RADIANS/SEC (not rpm) by the time interval required (3.20 s). The answer should be negative, with dimensions of radans/s^2

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**javane**, Friday, November 26, 2010 at 2:31pm
thnak you i have the equation studied now

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