Question

A satellite does not need any fuel to circle around the earth. Why?

Answer 1

Hi,

Here is your answer,

The gravitational force between satellite and the earth provides the centripetal force required by the satellite move in a circular orbit. The satellite orbits around earth at such a higher height where air friction is neglible.


Hope it helps you !

Answer 2

The satellite is moving without fuel because of the gravitational force which is pulling it ...
In real u will it believe but the satellite is falling towards earth but it always missed because the gravitational force it make it move round and round...

A satellite rotates around the earth by using earth's gravitational force as centripetal force. Also as there is no air in space, it does not have to work against air resistance. Hence it doesn't lose any energy while rotating. So it does not require fuel to rotate around the earth.