Question

Define orbital velocity establish a relation for orbital velocity of a satelite orbiting very close to the surface of the earth find the ratio of orbital and escape velocity

Answer 1

Answer:

Explanation:Orbital velocity is the velocity given to artificial satellite so that it may start revolving around the earth. Expression for orbital velocity: Consider, a satellite of mass 'm' is revolving around the earth in a circular orbit of radius 'r', at a height 'h' from the surface of the earth

Answer 2

In gravitationally bound systems, the orbital speed of an astronomical body or object is the speed at which it orbits around either the barycenter or, if one object is much more massive than the other bodies in the system, its speed relative to the center of mass of the most massive body.

Orbital velocity is the minimum velocity that is needed to put the satellite into a given orbit around Earth. Consider a satellite of mass 'm' moving around in an orbit at height 'h' above the ground. Let M be mass of Earth, R be the radius of earth and the orbital velocity be ${V}_{o}$.

The relationship between the escape velocity and the orbital velocity is defined by Ve = 2 Vo where Ve is the escape velocity and Vo is the orbital velocity. And the escape velocity is root-two times the orbit velocity.

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