what is the final velocity of an object falling into ablack hole from infinity?

Question

as per the energy conservation law an object falling from infinity to earth(say)would have its escape velocity as final velocityso an object falling to black hole would have finalvelocity>c

Answer 1

It would be the speed of light at the event horizon, which is defined as the point at which escape velocity is the speed of light. Escape velocity is basically defined as the speed of something that fell from rest at infinite distance. The diameter of the event horizon is also often considered as the diameter of the black hold. What happens inside the event horizon really esoteric, and way beyond my knowledge anyway.

Answer 2

The velocity wouldn't necessarily have to be c. If the object was a neutrino, it's escape velocity would be less than c, because its mass is less than a photon. So this question depends on the object's characteristics. But this is escape velocity, which is different to final velocity of the object before entering the blackhole, so it is reasonable to assume that, as you said, the final velocity is > c. Further, as "> c" is said to be impossible, we could conclude that the final velocity of the object is undefined.

Answer 3

An object does not fall into a black hole "from infinity". The object however would attain nearly the speed of light. It would not attain the speed of light however because in order for an object, which has mass, to attain the speed of light it would need an infinite amount of energy which does not exist.

Answer 4

Final velocity wud be more than c as the escape vel. of a Black is more than c. (That's why even light cannot escape it's gravitational pull.)

Answer 5

extremely on added theory .. there could be no very final speed for an merchandise stepping right into a black hollow... as a black hollow swirls all the way down to infinity.. so the seen an exceedingly final speed never occurs...