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# The fan blades on a jet engine make one thousand revolutions in a time of 49.7 ms. What is the angular frequency of the blades?

The fan blades on a jet engine make one thousand revolutions in a time of 49.7 ms. What is the angular frequency of the blades?

thank you!

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- NCSLv 71 month agoFavourite answer
You have 1000 * 2π radians in 49.7 ms, so the angular velocity is

ω = 1000*2π / 0.0497s = 1.26E5 rad/s

also called the angular velocity

- Wayne DeguManLv 71 month ago
1000 revs in 0.0497 seconds

so, (1000/0.0497) revs/second

i.e. 20121 revs/second...linear velocity

And 20121 x 2π rads/sec

i.e. 40242π rads/sec...angular velocity

:)>

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