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

Physics & Space Science

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