Under relativity, you can't simply add speeds like that, unfortunately (I believe this is related to the fact that the speed of light is the same in all reference frames). Here's a link that can explain it better, though: http://curious.astro.cornell.edu/about-us/139-physics/the-th...
In short, you can't go faster than light in any reference frame, relative to any other observer.
In short, you can't go faster than light in any reference frame, relative to any other observer.
Here's another source: https://physics.stackexchange.com/questions/75501/lorentz-an...