what is the role played by gravitational force in the rotation of a satellite around earth?

Answer 1

It's the starring role, the best supporting role, the directing role, the special effects role, in short, it's everything, almost. Satelites in space are actually falling to Earth continually due to gravitational pull. They are also moving tangent to the orbit though so the net displacement as far as height from the Earth is concerned is 0 or near 0

Answer 2

it is named a geosynchronous orbit and there are varied satellites located in geosynchronous orbits. there's a particular case the place the satellite tv for pc is right now above the equator and is going around the earth on an identical velocity by way of fact the earth rotates. it extremely is named a geostationary orbit. The satellite tv for pc seems table guaranteed to somebody staring at it from earth. via the way, maximum satellites are released going with the rotation of the earth so as that they are able to apply the fee of the earths rotation as a enhance into orbit.

Answer 3

You mean revolution around the earth; planets & staellites revolve around another body (strictly speaking, both bodies revolve around their center of mass) and normally rotate around their own axes as well.

An orbiting satellite is actually in free fall around the earth, but its horizontal velocity is so large that the earth curves away before it can strike the surface. The correct velocity for stable orbits varies only with the altitude and not the mass of the satellite: those in lower orbits must move faster.

The Space Shuttle, for example, takes about 90 minutes to orbit the earth because its altitude is only 100-something miles. Communications satellites are sent to an altitude of 22,300 miles so they have an orbital period of 24 hours, and they are placed right over the equator orbiting west to east so they appear to 'hover' in the same spot in the sky - that's why all the dishes you see are pointing at the same angle, to the celestial equator where these satellites are located. That's also why there is fierce competition for these "geostationary" orbits, which are limited to this narrow ring around the earth.

Answer 4

gravity holds the satellite in place so to speak and moving. The satellite is technically in a constant state of "falling"...though it never actually falls because it's moving so fast that around the earth that it counteracts the gravity. Think about a weight on the end of the string. If you swing the string in a circle above your head....the gravity is like the force of the string, keeping the weight on the end of the string from flying away.