Here's the question you clicked on:

55 members online
  • 0 replying
  • 0 viewing

Glass8

  • 4 years ago

In one of the physics I lectures, Lewin was able to make a top spin forever (or at least half an hour and more). What's the trick?

  • This Question is Closed
  1. Arch
    • 4 years ago
    Best Response
    You've already chosen the best response.
    Medals 3

    The amount of time that the top spins would be a function of its initial angular momentum and the friction of the top against air and the surface its spinning on. Thus, the longest spin would come from a top which is very smooth, has a very smooth tip spinning on a smooth surface (all to reduce friction), and is very heavy, wide, and has a large initial angular velocity. I am of course assuming here that the top is also very well balanced. Basically, its not really a trick, its just a matter of spinning a very good top very fast on a low-friction surface.

  2. Not the answer you are looking for?
    Search for more explanations.

    • Attachments:

Ask your own question

Sign Up
Find more explanations on OpenStudy
Privacy Policy