**Proof: Kepler's 2nd Law ( Equal Areas in Equal Times: Variable - Speed Model )**

**"**I also ask you, my friends, not to condemn me entirely to the mill of mathematical calculations, and to allow me time for philosophical speculations, my only pleasures**"** - Johannes Kepler ( 1571 - 1630 )

**Vector Analysis**

Now, Newton's Universal Law of Gravity together with Newton's 2nd Law of Motion gives

Then, again,

Finally, Kepler's 2nd Law of Equal Areas in Equal Times: