Thank you very much for reply. please tell me this also. how long I have to apply that force... consider a scenario hat I have a stone in my hand.. then How much for I have to apply ? Its Like one time force. I won't apply for long time like rocket...does any object has to maintain its 11.2km/s...
I know escape velocity. in order to get out of Earth's orbit the object has to maintain 11.2 km/s speed.
But If I want to throw a 1kg stone out of orbit... how much force I have to apply?