In this module I introduced the new velocity combination formula without deriving it. As I’ve mentioned, we will derive it later in the course (in Module 25, in fact), but I feel you should gain familiarity with certain key idea before encountering the additional burden of technical details. I also realize that people have different learning styles, so tell me: Is this an approach that works for you, or do you need to see derivations before you’re comfortable with a new formula?