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: Moments of Inertia for a Cylinder and Disk

  1. Nov 5, 2012 #1
    What are they? I have some poeple telling me that for a cylinder it's I = (1/4)MR2 + (1/12)ML2 and that for a disk it's the same. Other people have told me that it's I = (1/2)MR2 for a disk and that it's the same for a cylinder. In the past I've used the former and have gotten the right answers on my homework but I used the same equation for a question i'm stuck on and got the incorrect answer. I just want some clarification on this, I'd really appreciate it.
     
  2. jcsd
  3. Nov 5, 2012 #2

    TSny

    User Avatar
    Homework Helper
    Gold Member
    2017 Award

  4. Nov 5, 2012 #3
Share this great discussion with others via Reddit, Google+, Twitter, or Facebook