Homework Help: physics

Posted by angie on Sunday, November 28, 2010 at 2:09pm.

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, Sunday, November 28, 2010 at 2:30pm
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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