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!

Need help on Torque

  1. Nov 6, 2005 #1

    drot2.gif
    I applied equation 4 to find the angular acceleration. And then I applied this equation, plugging in the moment of inertia I= m R R/2 and angular acceleration
    timg533.gif

    But I don't get the right answer. The answer is 0.76. Whar's wrong with my step ? thx
     
  2. jcsd
  3. Nov 6, 2005 #2

    Chi Meson

    User Avatar
    Science Advisor
    Homework Helper

    The differentials are not necessary here.
    What did you get for [tex] \alpha [/tex]?
    And what did you get for the answer?
     
    Last edited: Nov 6, 2005
  4. Nov 6, 2005 #3
    60491519_298c97f2b7_o.jpg
    The answer is not 0.76. I dun know what's wrong with my step.
     
    Last edited: Nov 6, 2005
  5. Nov 6, 2005 #4

    Chi Meson

    User Avatar
    Science Advisor
    Homework Helper

    The angular acceleration has to be in radians/s/s, not rev/s/s. Otherwise, you are doing OK.
     
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook




Similar Discussions: Need help on Torque
  1. Need help on torque (Replies: 2)

Loading...