And from the conservation of energy equation,
\( { v }_{ t }^{ 2 }+{ v }_{ s }^{ 2 }={ c }^{ 2 }\)
when \( { v }_{ t }=0\),
\({ v }_{ s }={ c }\)
that means the body falling into such a gravitational field will tend towards light speed.
Conversely, if a body is at rest in such a gravitational field it will have to gain light speed to escape such a field. When,
\({ r }_{ o }<0.00886 m\)
that is to say a denser body, we will need speed greater that light speed to escape, and light itself will not be able to escape from this gravitational field. Yes, we have a black hole.
Thank you for being here.
