https://youtu.be/iq6UMz56bZA
Welcome to Lecture 2, for Physics 1101. This is the first lecture where we begin some real content for the class. This material comes out of Chapter 1, and I’m going to be describing in more detail the idea of units and how they’re going to come into play when you go to solve problems, for physics. We’re then going to spend the rest of the lecture talking about trigonometry and vectors.