Lesson 4.2 - Universal Gravitation
In this lesson, we look at Newton's understanding about how gravity worked. We start out by looking at how Newton got to that point by looking at Kepler's Laws of Planetary motion. Don't worry about those though. We will not be applying them to anything, we just need to know them. We then look at Newton's Law of Universal Gravitation and how it applies in various scenarios. You finish off the lesson by applying universal gravitation to planetary motion to show how we can predict the motion of planets and celestial objects using universal gravitation. When you are done going through the examples, you can work on Assignment 4.2.
