Why is only 1 force taken into account when there are actually 2?

Subject: Why is only 1 force taken into account when there are actually 2?

Date: Fri Jan 22 12:14:56 2010
Posted by Kalle Heikkinen
Grade level: 10-12 School: HES
City: Helsinki State/Province: No state entered. Country: Finland
Area of science: Physics
ID: 1264187696.Ph

Message:


Assume an upright spring with a weight G on top of it. According to a statics 
FBD there are two forces acting upon the spring: G(weight) downwards and F(the 
earth's support upwards). But the displacement from equilibrium is only G/-k 
not G+F/-k why?

Re: Why is only 1 force taken into account when there are actually 2?

Current Queue | Current Queue for Physics | Physics archives

Try the links in the MadSci Library for more information on Physics.