physics
posted by angie .
A centrifuge in a medical laboratory rotates at an angular speed of 3500 rev/min. When switched off, it rotates through 54.0 revolutions before coming to rest. Find the constant angular acceleration of the centrifuge in rad/s^2.

physics 
drwls
3500 rev/min = 366.5 rad/s
Time to stop = 54 rev/(average rpm) = 0.0309 min = 1.851 seconds
angular deceleration rate
= (366.5 rad/s)/(1.851s)
= ____ rad/s^2 
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