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Homework Help: Torque on a rod

  1. Apr 30, 2010 #1
    A 20 Kg slender rod pivoted at its center has a length of 6 m. A motor applied a torque of 2400 Nm on the rod to turn it from rest.
    (a) Find the average power by the motor when the rod rotates an angle of 500 rad. _____________________
    (b) Find the instantaneous power of the motor at the moment that the rod rotates an angle of 500 rad. ______________________

    I am unsure how to start this.
  2. jcsd
  3. Apr 30, 2010 #2
    You should at least list some formulas you think you might need. For example, a formula for power at least.
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