What Does Keplers Second Law State

In geometry: The world system. Kepler’s second law states that a planet moves in its ellipse so that the line between it and the Sun placed at a focus sweeps out equal areas in equal times.

What was Kepler's second law quizlet?

Kepler’s First Law states that orbits are not circular, but elliptical, with the Sun at one of the foci. Kepler’s Second Law states that “An imaginary line drawn from the center of the Sun to the center of a planet will sweep out equal areas in equal intervals of time.

How did Kepler develop his second law of motion?

With Ptolemy’s mathematical tools, excenter and equant, trying to fit parameters with observations as well as possible, he discovered the Law of Areas (now called the Second Kepler’s Law). In this intermediate model the planets moved on circles but instead of having constant speed, they obeyed the Law of Areas.