2006-08-11 08:33:29 · 7 answers · asked by Anonymous in Science & Mathematics ➔ Earth Sciences & Geology
11 km/sec
2006-08-11 08:38:16 · answer #1 · answered by Anonymous · 0⤊ 0⤋
The escape velocity of a planet is that velocity needed to escape the pull of gravity from that body without adding additional energy. At the surface of the earth it is about 11 km/sec. However, if there was atmosphere in space and a really, really long ladder, and you could live long enough simply climbing that ladder would get you there, however far "there" is. In other words, a rocket of less power but for a longer time could get out of the gravity pull of the earth. Think of it like climbing a hill with a bike. You can go really really fast and coast, or you can slowly and methodically pedal. You get there either way.
2006-08-11 16:59:57 · answer #2 · answered by Anonymous · 0⤊ 0⤋
On the surface of the Earth the escape velocity is about 11.2 kilometres per second. However, at 9000 km altitude in "space", it is slightly less than 7.1 km/s.
2006-08-11 16:38:58 · answer #3 · answered by Anonymous · 0⤊ 0⤋
It is the velocity needed to break away from the pull of earth's gravity about 25000 MPH
2006-08-11 16:27:15 · answer #4 · answered by redtxeagle 1 · 0⤊ 0⤋
about 7 miles per second, or 25,000 miles per hour....
2006-08-11 15:39:35 · answer #5 · answered by ? 4 · 1⤊ 0⤋
11.2km/sec
2006-08-11 15:50:57 · answer #6 · answered by trouthunter 4 · 0⤊ 0⤋
25,000 M.P.H.
2006-08-11 16:08:28 · answer #7 · answered by Pundit Bandit 5 · 0⤊ 0⤋