What angular acceleration is necessary to increase the angular speed of a fan blade from 8.2 rad/s to 15.5 rad/s in 5.9 s? Answer in units of rad/s 2

Explanation:

The angular acceleration () of an object under a circular motion, is the rate of change of its angular velocity () with respect to time. Therefore, angular acceleration is defined as:

Here is the final angular speed and is the initial angular speed. So, replacing the given values, we get the needed angular acceleration:

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