Refer to Exhibit 9-2 Below $-\frac{\pi}{90}$ C) $-\frac{\pi}{30}$ D) $+\frac{\pi}{30}$ E) $+\frac{\pi}{90}$

question 31

Multiple Choice

Refer to Exhibit 9-2 below.Exhibit 9-2 The figure below shows a graph of angular velocity versus time for a man cycling around a circular track. What is his average angular acceleration, in rad/s2, in the period from t = 6 min to t = 8 min?

• A)0
• B) \(-\frac{\pi}{90}\)
• C) \(-\frac{\pi}{30}\)
• D) \(+\frac{\pi}{30}\)
• E) \(+\frac{\pi}{90}\)

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