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!

Angular momentum question

  1. Apr 13, 2008 #1
    Here's a question on a homework assignment that no one understands...

    A unifrom wheel of mass 10.0 kg and radius .400m is mounted rigidly on the axle through its center. The radius of the axle is 0.200m., and teh rotational inertia of teh wheel-axle combination about its central axis is 0.600 kg.m^2. The wheel is initially at rest at the top of a surface that is inclined at angle (theta=30.0degrees) with the horizontal; the axle rests on the surface while the wheel extends into a groove in the surface without touching the surface. Once released, the axle rolls down the surface smoothly and without slipping. When the wheel-axle combination has moved down the surface by 2.00m, what are (a) its rotational kinetic energy and (b) its translational kinetic energy?

    The answers are: A-58.8J B-39.2J
    Obviously its how we got those answers that matters.

    I don't really know where to start so any help would be appreciated.
  2. jcsd
Know someone interested in this topic? Share this thread via Reddit, Google+, Twitter, or Facebook

Can you offer guidance or do you also need help?
Draft saved Draft deleted

Similar Discussions: Angular momentum question