- #1
Raziel2701
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Homework Statement
Consider the two-dimensional spacetime spanned by coordinates (v,x) with the line element
[tex]ds^2=-xdv^2 +2dvdx[/tex]
Calculate the light cone at a point (vx)
The Attempt at a Solution
I don't even know how the light cone for flat spacetime is calculated. So if that one's easier to explain or understand I'd like to start there. In that one for instance, I don't know how it was calculated that 45 degree lines are reserved for things moving at lightspeed.
In the case of the line element of the problem, I don't know what it would look like compared to the flat spacetime element.
Ultimately I just don't know squat about manipulating these and extracting information from them.