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The angular velocity of a fan blade is 6.2 radians per second.

Approximately how many revolutions does the fan blade make in 1.6 minutes?

Enter your answer, rounded to the nearest tenth of a revolution, in the box.

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 Apr 1, 2020
 #1
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1.6 minutes is 1.6 x 60 = 96 seconds.

Its angular velocity is 6.2 radians per second:  6.2 radians/second x 96 seconds = 595.2 radians.

 

One revolution of the fan is one circumference of the fan, which is 2pi radians.

Dividing 595.2 radians by 2pi radians gives us an answer of 94.7 revolutions.

 Apr 1, 2020

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