A black hole attracts everything, even light. So the suction should be so strong that the attracted is faster than the speed of light. How hard does the black hole pull on you? And then disappear into the hole at the speed of light (if only it lasts long enough)?
Answer
That’s a bit of a misconception. The attraction of a body by gravitation depends on the mass of that body and the distance from that body. If the sun were a black hole with the same mass it has now, we would be just as attracted to it from our distance as we are now.
If it were a black hole, the Sun would be much smaller for the same mass, and we could get much closer to it. And because the attraction increases rapidly as you get closer, we would feel it stronger. But, again, if you stay the same distance, there’s no problem.
Light is attracted to mass whether that mass is a black hole or not. Again, the amount of attraction depends on mass and distance alone, not on whether that mass is in a black hole or not. But again: with a black hole, the light can come closer to it, and then the attraction is greater.
If you fall on a black hole (as on any mass), you will be accelerated. But a body that has mass itself can never reach the speed of light, because that would require an infinite amount of energy.
Answered by
Prof. dr. Christopher Waelkens
Astronomy
Old Market 13 3000 Leuven
https://www.kuleuven.be/
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