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Homework Help: Calculate angular velocity and angular acceleration of a rotating mass

  1. May 15, 2013 #1
    I need to calculate the angular velocity of a 2kg mass rotating in a horizontal circle of 2m radius where 1 revolution takes 4 seconds


    My attempt was this : 4/360=.0111111×57.3=.636rs.
  2. jcsd
  3. May 15, 2013 #2


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    welcome to pf!

    hi hshandarama! welcome to pf! :smile:
    but you don't know the speed, v (it certainly isn't 4) :redface:

    hint: angular velocity is radians per second :wink:
  4. May 15, 2013 #3
    Yeah i'm on it. 1.57 radians per second. Thanks
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