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Do the event horizon of Kerr black Hole have escape velocity is equal to the speed of light same Schwarzschild black hole?

Nuttz Multi
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1 Answers1

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Yes, the escape velocity at the event horizon of any black hole is the speed of light. That is one way to define where the event horizon is.

However, “escape velocity” is an overly Newtonian way to think about what is going on, which is: within the horizon, there are no lightlike or timelike geodesics that cross to the outside.

G. Smith
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