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Homework Help: Real easy

  1. Mar 11, 2005 #1
    A high-speed sander has a disk 4.00 cm in radius that rotates about its axis at a constant rate of 1100 revolutions per minute. Determine the angular speed of the disk in radians per second.

    I get angular displacement / Time = 360rad/.0545454s

    180=pi*rad <= need help figuring out radians of problem
  2. jcsd
  3. Mar 11, 2005 #2
    one revolution = [tex] 2 * \pi [/tex] radians
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