Question

How do kepler's laws of planetary motion relate to newton's law of universal gravitation?

Answer 1

Universal gravitation is what governs and explains planetary motion.

Explanation:

For example, the Earth orbits the Sun because the Sun attracts the Earth with a large gravitational force, but the Earth moves so quickly on a perpendicular path to the Sun that it "escapes" from falling into the Sun. However, the Earth does not move fast enough to escape the Sun's pull completely, so it orbits at a distance relative to the magnitude of the gravitational force and velocity it moves at.