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Physics, 28.10.2019 15:29 aimeedelacruz24

Aceiling fan is turned on and reaches an angular speed of 120 rev/min in 20 s. it is then turned off and coasts to a stop in an additional 60 s. the ratio of the average angular acceleration for the first 20 s to that for the last 60 s is which of the following?

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Aceiling fan is turned on and reaches an angular speed of 120 rev/min in 20 s. it is then turned off...
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