SOLUTION: A pully of radius 7cm rotates 15 times in 128 sec. Find the angular velocity of the pulley.

Algebra ->  Trigonometry-basics -> SOLUTION: A pully of radius 7cm rotates 15 times in 128 sec. Find the angular velocity of the pulley.      Log On


   

Question 500807: A pully of radius 7cm rotates 15 times in 128 sec. Find the angular velocity of the pulley.
Answer by Alan3354(69443) About Me  (Show Source):
You can put this solution on YOUR website!
15 revs = 5400 degrees
5400 degs/128 sec = 42.1875 deg/sec
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15 rev = 30pi radians
30pi/128 = 0.234375pi radians/sec
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The size of the pulley is not relevant.