LogFAQs > #984078

LurkerFAQs ( 06.29.2011-09.11.2012 ), Active DB, DB1, DB2, DB3, DB4, DB5, DB6, DB7, DB8, DB9, DB10, DB11, DB12, Clear
Topic List
Page List: 1
TopicQuick entry-level physics question >_>
agesboy
04/03/12 2:10:00 PM
#1:


I'm attempting to solve a simple equation for work done when pulling a spring with a mass attached to it from point A to point B. Point A is the length of the spring with a mass attached to it, and point B is a fixed length after I've done an unknown amount of work. I've already figured out the spring constant.

Work = force x compression distance, and since the force applied is changing over time and I'm trying to find total work I have to take the integral from A to B with respect to distance; that's the work done if the mass wasn't on the spring, I understand that much. But how does the mass already pulling on the spring come into this, when work is involved? Do I ignore that force since it was what pulled down the string from relaxed to point A to begin with, or do I have to account for that when integrating somehow?

...I'm not quite sure why I'm asking B8, but there's gotta be someone here who's a science-related major who finds this easy to conceptualize <_<

--
"Duel audio? You mean like rap battles?" - termina_rzident
KrahenProphet and Kana are on opposite ends of the Awesome Spectrum.
... Copied to Clipboard!
Topic List
Page List: 1