Question

What is Kepler law ?
Give an example.​

Answer 1

Answer:

a statement in astronomy: the orbit of each planet is an ellipse that has the sun at one focus. 2 : a statement in astronomy: the radius vector from the sun to each planet generates equal orbital areas in equal times.

Answer 2

Answer:

KEPLER'S LAW - DEFINITION

The orbit of a planet is an ellipse with the Sun at one of the two foci.

KEPLER'S SECOND LAW - DEFINITION

A line segment joining a planet and the Sun sweeps out equal areas during equal intervals of time.

KEPLER'S THIRD LAW - DEFINITION

The square of the orbital period of a planet is proportional to the cube of the semi-major axis of its orbit.

Example: The period of revolution of an earth's satellite close to the surface of earth is 90 minutes. Find the period of another earth's satellite in an orbit at a distance of three times earth's radius from its surface.