Ask
your own question, for FREE!
MIT 8.01 Physics I Classical Mechanics, Fall 1999
41 Online
OpenStudy (anonymous):
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?
Still Need Help?
Join the QuestionCove community and study together with friends!
OpenStudy (anonymous):
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.
Can't find your answer?
Make a FREE account and ask your own questions, OR help others and earn volunteer hours!
Join our real-time social learning platform and learn together with your friends!
Join our real-time social learning platform and learn together with your friends!
Latest Questions
notmeta:
I need ideas for a fictional business :P (has to be a sole proprietorship)
7 hours ago
1 Reply
2 Medals
0bviouslyNotRakita:
Letu2019s say you want to go to XYZ Medical School as itu2019s located in Corpus Christi, TX and youu2019d love to live on the beach while attending medical
12 hours ago
0 Replies
0 Medals
Angie2009:
Can anyone here help me learn Korean? My brothers want me to move back to Korea b
1 hour ago
4 Replies
0 Medals
Subshilava:
Which of the following is the real root and which is the non real root X=2+-i X=4
11 hours ago
4 Replies
1 Medal
Alanaaaaaaa:
Shattered Whispers In the dim light where shadows creep, She stood, a specter in my dreams, Eyes like burning coals, secrets to keep, Her laughter danced on
6 hours ago
35 Replies
2 Medals