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.
Correct Answer:
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