Relation between the sol, mass, gravity, and black holes

by Jeaaas
Tags: black, gravity, holes, mass, relation
Jeaaas is offline
Jun20-12, 09:52 PM
P: 1
I'm a fan. Not a physicist or astronomer.. But this question is bothering me. If the mass of an object increases to infinity as it approaches the speed of light, does that also create infinite gravity at the object?

And if so, if we consider the gas swirling around the black hole is very near the speed of light, wouldn't the mass of the gas be infinite? And therefore the gravity of the gas would be infinite. So. Does the inside of the black hole have infinite gravity or does just appear so because the gas at the edge has infinite gravity?
Phys.Org News Partner Science news on
NASA's space station Robonaut finally getting legs
Free the seed: OSSI nurtures growing plants without patent barriers
Going nuts? Turkey looks to pistachios to heat new eco-city
mathman is offline
Jun21-12, 03:21 PM
Sci Advisor
P: 5,937
Near the speed of light is not the same as at the speed of light. Since all objects with mass cannot go at the speed of light, their masses never become infinite.

Black hole gravity is not infinite. It is large enough so that the escape velocity is greater than the speed of light, so nothing can escape.

Register to reply

Related Discussions
Black Holes Relation to an Accelerated Expanding Universe Cosmology 12
Black Holes and gravity. Cosmology 2
Photon, Gravity, Mass and Black Holes. Astrophysics 17
the relation between the bermuda triangle and black holes General Discussion 6
Gravity of Black Holes General Astronomy 3