1. Limited time only! Sign up for a free 30min personal tutor trial with Chegg Tutors
    Dismiss Notice
Dismiss Notice
Join Physics Forums Today!
The friendliest, high quality science and math community on the planet! Everyone who loves science is here!

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.
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook