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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Definitions:

Experimental Method

A research method that involves manipulating one variable to determine if changes in one variable cause changes in another variable.

Case Study

A detailed examination of a single subject (an individual or a small group), often used in clinical, social, or educational research to explore complex phenomena.

Dependent Variable

In experimental and observational studies, it is the outcome or factor that researchers aim to understand or predict based on changes in other variables.

Independent Variable

A variable in experimental research that is manipulated to determine its effect on a dependent variable.