Avoiding Pull of a Black Hole
Name: honest abe
Date: 1993 - 1999
How close can you go to a black hole without being sucked in?
If M is the mass of the black hole then you can come back from a close
encounter with a black hole if you stay at distances larger than (2GM/(c^2)).
Here G is the universal constant of gravitation, c is the velocity of light.
This assumes that you are a point particle, for extended bodies, tidal forces ca n lead to disruption
much before this distance.
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Update: June 2012