If black holes exists as described by S. Hawkins, then , what hapens if 2 black holes collide?

Question

would one swallow the other ? or would they bounce off each other?

Answer 1

it depends on the holes size and the speed they approach each other.

from theory it was assumed that they just merge and form a larger one

obervations indicate that black holes may explode while merging and create extremly violant outbreaks of gamma radiation
-> gamma-ray-bursts

Answer 2

It's believe that such a collision simply creates a single, much more massive black hole.

Answer 3

They merge and create a big giant black hole called an ******.