Conservation of energy and conservation of momentum

[sauri]

Using both cinservation of energy and conservation of momentum, show that the spring constant k is given by k=2mg/H[1+mg/(m+M)H]

I thought that this would go easier if I rewrote the expression for kinetic energy in terms of momentum, but I can't exactly get around figuring the change in momentum to build an equation. would (m1v1/2) be correct?

 

[Hootenanny]

Do you have defintions for your symbols?

 

[sauri]

as in initial mass and initial velocity?

 

[topsquark]

as in initial mass and initial velocity?

"Initial mass?" : Perhaps you'd better tell us what the question is.

-Dan

 

[Hootenanny]

"Initial mass?" : Perhaps you'd better tell us what the question is.

-Dan

Hmm, a mass spring system oscillating at close to the speed of light. I've never done relativistic effects with SHM before...could be interesting...

 

[sauri]

It seems I have taken a wrong approach. I need to show that the spring constant k can be given by 2mg/H[1+mg/(m+M)H] using thr conservation of energy and momentum.

 

[Hootenanny]

Does the question not give you any definitions for the symbols used?

 

[sauri]

I worked it out. No matter

 

[topsquark]

I worked it out. No matter

Then at least have the decency to tell us! You've got ME curious, anyway.

-Dan