June 10th, 2009, 06:02 PM  #1 
Newbie Joined: Jun 2009 Posts: 1 Thanks: 0  Paper length
I have a roll of paper on a 3'' spindle. The paper is 0.024'' thick, at the end the roll diameter is about 8.25'' for about 100 to 102 layers. It gives a length of 144 feet. I know all the stuff but I look for the differetial equation that could be used to solve this problem. I use Maple 11. Each turn, the diameter increase of 2*paper thickness and... Assumption: all layers are well stick (close) together. I want absolutely to solve it with a differential equation because I have already other solutions (Archimed spiral, concentric circles, area method...) Someone can help me?? Thanks!! ) 

Tags 
length, paper 
Thread Tools  
Display Modes  

Similar Threads  
Thread  Thread Starter  Forum  Replies  Last Post 
find length if angle and length is given...  amin7905  Algebra  4  July 19th, 2012 01:08 PM 
Suggestions on paper  Deb_D  Advanced Statistics  3  November 23rd, 2010 09:07 AM 
Can someone edit my paper  SHRock  Calculus  0  October 11th, 2010 09:23 AM 
Paper Size  Cola  Algebra  4  October 21st, 2008 04:31 AM 
the paper  bigli  Real Analysis  3  May 22nd, 2007 10:00 AM 