The Reality of our first Free Body Diagram

The video tutorial discusses the basics and reality of free body diagrams, focusing on the forces acting on a book. It explains the difference between initial simplified diagrams and more realistic ones, where forces are shown at their points of contact. The tutorial compares this learning process to understanding projectile motion, where complexities like air resistance are introduced later. The video concludes by hinting at more advanced topics like torque, emphasizing a gradual learning approach.

What complications arise when including the force of drag in projectile motion?

Why is it easier to start with forces acting on the center of mass in free body diagrams?