Spinning on chair

  1. Why is it that when I hold a spinning wheel on a rotating platform, when I turn the wheel upside down, the platform rotates?

    Is it because the angular momentum changed dircetions? Hence applying a force to keep sability making the platform turn?

    Is this the same idea is a top? How it is easier to keep a top on the tip when it's in motion rather than when it is stationary?
  2. jcsd
  3. This should help.
Know someone interested in this topic? Share this thead via email, Google+, Twitter, or Facebook

Have something to add?