No one will post in this thread... it's about a physics question....

[94niners]

Figured I'd post this one in the neighborhood section...

Maybe someone can solve it. Here is the problem (it is a coupled oscillation problem):


Given a spring/mass system of the following type:

Two different masses, three different springs, each with a different spring constant, arranged like so


|-----------m1------------m2----------|

no friction and no other forces present.

At t = 0 each mass moves to the right x1 and x2 distance respectfully.





1. Derive the laws of motion for each mass in this system.

2. Using the Similarity Transformation find the Eigenvalues and Eigenvectors.

3. Find the time dependent position and speeds of the two masses.

4. Determine the propagator matrix for this.

5. Describe the normal modes of vibration for the system.



You have my eternal respect if you solve this...

[oakfan162]

Re: No one will post in this thread... it's about a physics question....

No idea in heck. But POST!

[42]

Re: No one will post in this thread... it's about a physics question....

[Speedy]

Re: No one will post in this thread... it's about a physics question....

I took some physics way back in the day but just to clarify - is this the type of spring/mass system you're talking about? For some reason I always think of the Sonic the Hedgehog springs (like the speed boosters on the "track")

[Hooe]

Re: No one will post in this thread... it's about a physics question....

I really hope that's not for an entry-level physics class.

That said, in idealized worlds such as the one in this problem, don't springs perfectly conserve force (i.e. all force on one block will be transferred onto the next block via the spring)?

There's a reason I'm not doing majoring in physics, though. Best of luck.

[ehh]

Re: No one will post in this thread... it's about a physics question....

Four.

[afro_dogg20]

Re: No one will post in this thread... it's about a physics question....

.....i have no idea

[deaduck]

Re: No one will post in this thread... it's about a physics question....

You ask each of them what road will your brother tell me to take then go the opposite....

or like ehh said....

4

[DocHolliday]

Re: No one will post in this thread... it's about a physics question....

Dont you need the properties of the Mass to solve this?

[Sandman42]

Re: No one will post in this thread... it's about a physics question....

Problems like this are why I changed my major from engineering to finance.

[Boucher]

Re: No one will post in this thread... it's about a physics question....

Im just gunna carry on, but best of luck

[mgoblue]

Re: No one will post in this thread... it's about a physics question....

I knew this 10ish years ago when I was taking AP Physics, but not now...even as a computer engineering major I don't use that type of physics at all...

[stewaat]

Re: No one will post in this thread... it's about a physics question....

I aced Physics but went into Finance rather than science. Man I like this stuff, too bad I wasn't an engineer. Calc/physics were easy for me. Finance was a *****!

Oh and no I have no clue what the answer is. If I was taught the material I for sure would though!

[94niners]

Re: No one will post in this thread... it's about a physics question....

Dont you need the properties of the Mass to solve this?

Nope. We are neglecting things like wind resistance, etc. You can just leave the masses as unknowns to preserve generality.



Didn't think anyone would post. I suppose I fail, huh?

[DocHolliday]

Re: No one will post in this thread... it's about a physics question....

I think you would still have to know that weight of the mass to solve this, but Im not very good at physics