A Centrifuge in a Medical Laboratory Rotates at a Rotational

Multiple Choice

A centrifuge in a medical laboratory rotates at a rotational speed of 3600 rev/min. When turned off, it rotates 20.0 times at a constant angular acceleration before coming to rest. The angular acceleration of the centrifuge is

A) 1.50 rad/s².
B) 9.42 rad/s².
C) 18.8 rad/s².
D) 180 rad/s².
E) 565 rad/s².