Question: A ceiling fan is turned on and reaches an angular speed of 3 rev / min in 1 9 . 3 s . It is

A ceiling fan is turned on and reaches an angular speed of 3 rev/min in 19.3 s. It is then turned off and coasts to a stop in an additional 35.8 s. The ratio of the average angular acceleration for the first 19.3 s to that for the last 35.8 s is which of the following?

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