All about flooble | fun stuff | Get a free chatterbox | Free JavaScript | Avatars    
perplexus dot info

Home > Shapes > Geometry
The pencil (Posted on 2004-02-23) Difficulty: 3 of 5
I have a pencil that always rolls around on a slanted surface. One end is wider and heavier than the other. So whenever it rolls, it goes in a wide circle. Otherwise, the pencil is featureless, only becoming steadily wider towards one end.

The difference between the two diameters on the two ends is exactly 144 times smaller than the length of the pencil. If the pencil is pointing uphill on a slanted surface, how many times will it spin until it points downhill?

See The Solution Submitted by Tristan    
Rating: 4.0000 (6 votes)

Comments: ( You must be logged in to post comments.)
  Subject Author Date
simply put solutionDan Porter2004-02-28 22:39:58
re(2): But on the other hand....Penny2004-02-28 08:59:49
re: But on the other hand....nikki2004-02-26 17:47:21
re: But on the other hand....Brian Wainscott2004-02-24 14:57:06
But on the other hand....Penny2004-02-24 14:18:03
re(2): Trying to be even more exactThalamus2004-02-24 12:57:25
Hints/Tipsre(6): engl. unutsAdy TZIDON2004-02-24 11:53:59
re(5): Trying to be even more exact - dumb questionfwaff2004-02-24 11:02:30
re(4): Trying to be even more exactCharlie2004-02-24 10:53:25
re(3): Trying to be even more exactfwaff2004-02-24 10:49:17
re(2): Trying to be even more exactPenny2004-02-24 09:44:52
re: Trying to be even more exactCharlie2004-02-24 08:21:02
My thoughtRoberto Mattos2004-02-23 17:59:53
SolutionTrying to be even more exactPenny2004-02-23 17:15:04
SolutionTrying to be exact.Charlie2004-02-23 15:29:48
Please log in:
Login:
Password:
Remember me:
Sign up! | Forgot password


Search:
Search body:
Forums (0)
Newest Problems
Random Problem
FAQ | About This Site
Site Statistics
New Comments (1)
Unsolved Problems
Top Rated Problems
This month's top
Most Commented On

Chatterbox:
Copyright © 2002 - 2017 by Animus Pactum Consulting. All rights reserved. Privacy Information