A fan blade is rotating at 90 Hz when someone switches the fan to the next lowest setting. As a result, the blade uniformly slows down to 60 Hz in a time of 5.0 s. Through how many revolutions does the fan blade rotate between settings?

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A fan blade is rotating at 90 Hz when someone
switches the fan to the next lowest setting. As a
result, the blade uniformly slows down to 60 Hz
in a time of 5.0 s. Through how many revolutions
does the fan blade rotate between settings?
Transcribed Image Text:A fan blade is rotating at 90 Hz when someone switches the fan to the next lowest setting. As a result, the blade uniformly slows down to 60 Hz in a time of 5.0 s. Through how many revolutions does the fan blade rotate between settings?
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