Register to reply

2 masses connected by spring

by dowjonez
Tags: connected, masses, spring
Share this thread:
dowjonez
#1
Feb26-06, 04:45 PM
P: 22
consider two different masses m1 and m2. They are connected together by a spring. Assuming the spring has a spring constant k. Assume the equilibrium positions are x1= 0 and x2 = 0. Find the period of oscillation.


I know the the angular frequency is a function of both masses not just one mass like a fixed system.


im really stuck on this one
Phys.Org News Partner Science news on Phys.org
Security CTO to detail Android Fake ID flaw at Black Hat
Huge waves measured for first time in Arctic Ocean
Mysterious molecules in space
Astronuc
#2
Feb26-06, 05:08 PM
Admin
Astronuc's Avatar
P: 21,827
Yep, this is a tricky problem because nothing is fixed and the center of mass can moved. However, at equilibrium, the spring length is given by the difference in the equilibrium positions of both masses.

Are you sure about x1 = 0 and x2 = 0?
dowjonez
#3
Feb26-06, 05:14 PM
P: 22
yes thats what it says in the question. Im thinking that the x1 and x2 coordinates must be the displacement. So at time 0 neither are displaced. Also it was given that the mode of motion for the system was a stretching mode.

Ratzinger
#4
Feb26-06, 05:17 PM
P: 302
2 masses connected by spring

Since this a very important piece of physics I'm sure there is plenty on the internet.

Just goggle coupled harmonic osciallators or normal modes.
Ratzinger
#5
Feb26-06, 05:40 PM
P: 302
http://www.andrew.cmu.edu/course/33-231/coup-osc.pdf


Register to reply

Related Discussions
Mechanics Question - Atoms Modelled As A Chain of Masses Connected By A Spring Advanced Physics Homework 4
Two Masses connected by Spring, Falling Advanced Physics Homework 0
SHM: Impulse applied to two masses connected by spring Advanced Physics Homework 3
Question about two falling masses connected with a spring Introductory Physics Homework 2