2006-09-25 03:42:36 · 6 answers · asked by NageswaraRao B 1 in Science & Mathematics ➔ Physics
5000 MPH
2006-09-25 03:43:51 · answer #1 · answered by Anonymous · 0⤊ 0⤋
Most satellites are geostationary that means they hover exactly above the place on earth they are broadcasting to. This mean their speed relative to the earth is zero. However relative to teh center of the earth the speed can be calculated:
They are 35.7x10^6 m above the surface of the earth which has a radius of 6.5x10^6 m. So they are 42x10^6 m above the center of the earth and rotate once around their orbit distance 2*pi*radius every 24 hours.
This gives a speed of 11x10^6 m/hour
2006-09-25 11:01:57 · answer #2 · answered by Chris C 2 · 0⤊ 0⤋
depends on altitude! Speed of satellite on orbit varie with the inverse of the square root of the distance (to the center of rotation, not to the surface of the body, say the Earth, of course)
So if you quadruple the distance, the speed of the satellite halves
Some observation / spy satellites are as low as 400km (i.e. 6800 to the center of the Earth) and can orbit at 27'600 km/h (17'300 mph). Whereas geostationary satellites, used for TV for example, orbit at 38'000km and their speed is less, 11'700 km/h (7'300 mph).
The Moon goes along its orbit at a mere 3'690 km/h or 2310 mph.
Hope this helps
2006-09-25 10:51:04 · answer #3 · answered by AntoineBachmann 5 · 1⤊ 0⤋
It would totally depend on the altitude of the satellite: the higher the orbit, the slower the speed.
2006-09-25 10:44:45 · answer #4 · answered by bruinfan 7 · 0⤊ 0⤋
12500 mph to leave earths atmosphere and a traveling speed of 16000 when in stable orbit. (depending its altitude.)
2006-09-25 10:47:11 · answer #5 · answered by ron and rasta 4 · 0⤊ 0⤋
16,000 miles per hr
2006-09-25 10:44:06 · answer #6 · answered by Anonymous · 0⤊ 0⤋