Speed of light, Mass, And black Holes

[XeigerA]

Hey i have a question for anyone who wants to answer. Would an object moving at the speed of light which has infinite mass have infinite gravity? and if so would it also become a black hole? And if that's the case would a black hole with infinite gravity drag everything else at the same time or would it create a ripple effect around it where any observer's would notice the difference in the surrounding cosmologically, assuming they didnt notice the gravity shift themselves? How would that work?

 

[jtbell]

See the following article from the Usenet Physics FAQ:

http://www.physics.adelaide.edu.au/~dkoks/Faq/Relativity/BlackHoles/black_fast.html