Register to reply

Cross sectional area

by kiwikahuna
Tags: cross, sectional
Share this thread:
kiwikahuna
#1
Jun27-07, 08:20 PM
P: 61
1. The problem statement, all variables and given/known data
I'm working on a problem that is asking me to find Young's Modulus. I have the right formula and everything that I need but I can't seem to figure out how to find the cross sectional area of a nylon rope. The rope is 21 m long and 1.4 cm in diameter.


2. Relevant equations



3. The attempt at a solution

Would the cross sectional area be the area: pi(0.7)^2
Phys.Org News Partner Science news on Phys.org
Wildfires and other burns play bigger role in climate change, professor finds
SR Labs research to expose BadUSB next week in Vegas
New study advances 'DNA revolution,' tells butterflies' evolutionary history
Doc Al
#2
Jun27-07, 08:28 PM
Mentor
Doc Al's Avatar
P: 41,326
Quote Quote by kiwikahuna View Post
Would the cross sectional area be the area: pi(0.7)^2
Assuming that it has a circular cross-section (a reasonable assumption), then the area would be that of a circle ([itex]\pi r^2[/itex]). But be sure to use standard units for the radius.
nrqed
#3
Jun27-07, 08:28 PM
Sci Advisor
HW Helper
P: 2,887
Quote Quote by kiwikahuna View Post
1. The problem statement, all variables and given/known data
I'm working on a problem that is asking me to find Young's Modulus. I have the right formula and everything that I need but I can't seem to figure out how to find the cross sectional area of a nylon rope. The rope is 21 m long and 1.4 cm in diameter.


2. Relevant equations



3. The attempt at a solution

Would the cross sectional area be the area: pi(0.7)^2

yes (but be careful witt the units. This will be in cm^2. You might need to put it in m^2)

EDIT: Doc Al beat me to it :-)


Register to reply

Related Discussions
Column cross-sectional area (cm2) General Math 11
Smallest cross-sectional area of rod-end? Classical Physics 1
Computing Volume from Cross-Sectional Area Calculus & Beyond Homework 1
Cross Sectional Area to Newtons Advanced Physics Homework 7
Cross sectional area of cylinder? Introductory Physics Homework 3