1. The problem statement, all variables and given/known data I scanned the question because there was a rather helpful diagram thats needed to solve the question. http://img52.imageshack.us/img52/2715/assignmentq.jpg [Broken] 2. Relevant equations L=Iw , where I is the momentum tensor and w is the angular velocity. 3. The attempt at a solution Again I scanned my work because i'm not very adapt with the latex commands. http://img69.imageshack.us/img69/9082/cci0811200900000.jpg [Broken] Okay I think I solved part a correctly and I can solve part b using the result from a. However I'm having difficulty with part a) ii where we have to directly integrate L. I know since v=wr rxv(cross proudct)=r2w-r(r*w) But I'm not sure what my r vector should be. I tried setting it as (x,0,R) but that just sent the whole thing to zero. So any pointers in this regard would be very helpful.