Question 1138902: A flywheel is rotating at an angular velocity of 1,215 rev/min. When the power is disconnected, the speed decreases exponentially according to the equation
v=voe^−nt
. If its angular velocity decreases at a rate of 23% per minute, find its velocity (in rev/min) after 6.9 minutes.
Answer by Alan3354(69443)   (Show Source):
You can put this solution on YOUR website! A flywheel is rotating at an angular velocity of 1,215 rev/min. When the power is disconnected, the speed decreases exponentially according to the equation
v=voe^−nt
. If its angular velocity decreases at a rate of 23% per minute, find its velocity (in rev/min) after 6.9 minutes.
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After each minute its speed is 77% of the previous minute.
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1215*0.77^6.9
=~ 200.15 rpm
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