Posted by **Angel** on Sunday, December 6, 2009 at 2:43pm.

A propeller spins at 1880 rev/min.

the equals 197 rads/sec

b. What is the angular displacement of the propeller in 2.50 s ?

- Physics -
**AE**, Sunday, December 6, 2009 at 3:29pm
If you have angular velocity and you need angular displacement, just remember:

velocity=displacement/time

so solve that for displacement and it's

displacement=velocity*time

so it should be

angular displacement=(197 rad/s)(2.5 s)

and your answer should be 492.5 rad, be careful of whether the answer is supposed to be in degrees or radians

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