A wheel rotates through an angle of 320° as it slows down from 78.0 rpm to 22.8 rpm. What is the magnitude of the average angular acceleration of the wheel?
A)
2.34 r rad/s2
B)
5.48 rad/s2
C)
6.50 rad/s2
D)
8.35 rad/s2
E)
10.9 rad/s2
B
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