My Math Forum  

Go Back   My Math Forum > College Math Forum > Applied Math

Applied Math Applied Math Forum

LinkBack Thread Tools Display Modes
June 10th, 2009, 06:02 PM   #1
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!! )
plsm is offline  

  My Math Forum > College Math Forum > Applied Math

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 SH-Rock 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

Copyright © 2019 My Math Forum. All rights reserved.