perplexus.info :: Geometry : You say you want a revolution...

You say you want a revolution... (Posted on 2004-06-27)

A circle with radius 1 rolls without slipping once around a circle with radius 3. How many revolutions does the smaller circle make?

Does it matter if the smaller circle rolls on the inside or outside of the larger circle?

See The Solution Submitted by SilverKnight

Rating: 2.7500 (4 votes)

Comments: ( Back to comment list | You must be logged in to post comments.)

pi pi

| Comment 10 of 12 |

l=pi

l2=3, number of rotations =3/pi

Posted by vije on 2004-07-07 13:51:49

Please log in:

Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (3)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:


perplexus dot info