Re: Circular motion in SR
- From: "Pmb" <someone@xxxxxxxxxxxxx>
- Date: Thu, 13 Mar 2008 22:18:08 -0400
"xxein" <xxein@xxxxxxxxxxx> wrote in message
news:a8850b1b-35d1-4812-ac26-acd8fbfb9cc5@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
On Mar 13, 12:12 pm, "ram.rac...@xxxxxxxxx" <ram.rac...@xxxxxxxxx>
wrote:
I'm trying to write the equations for circular motion according to SR
laws of motion. I'm doing some kind of mistakes, because I'm not
getting real solutions to the equations.
This is what's going on: You have an body of mass m0 circling around a
stationary center point that is a distance of r from the body. There
is a force F that attracts the body towards the center point, making
it move in a circle around it. What's the velocity v of the object?
I've used these equations:
v=sqrt(a*r)
a=F/(m0*gamma^3)
gamma=1/sqrt(1-(v/c)^2)
I keep getting only imaginary solutions for v. What am I doing wrong?
Thanks, Ram.
xxein: Don't use SR. It cannot explain GR. And then GR makes its own
definition of 'force'.
Ram is not refering to a rotating frame of reference. He's talking about a
particle undergoing circular motion.
Ask yourself where any particle or sun got its energy from.
A free lunch? :)
Pete
.
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