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Torque,flywheels and angular acceleration

  1. Aug 18, 2009 #1
    ive been trying to do this question all summer to no joy. ive got a flywheel in motion which then has a torque applied for short period and i need to find the angular acceleration. i know its something to do with inertia but im completely lost cheers
  2. jcsd
  3. Aug 18, 2009 #2

    Doc Al

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    Staff: Mentor

    Newton's 2nd law applied to rotation will give you the angular acceleration: Torque = Iα. (I is the rotational inertia of the flywheel.)
  4. Aug 19, 2009 #3
    yer cheers ive done that and ive got a angular acceleration of 1000 rads-2 for 10kg disc radius 0.1m for a torque applied of 50Nm which seems a bit big
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