Forces 2
Newton's Laws 2
Friction
Friction arises when two surfaces are in contact with each other and are pushed in a way that makes the surfaces want to slide relative to each other. Note they don't have to be sliding. Air resistance is also a form of friction.
Inclined Planes
Often times an object we are trying to analyze with FBDs sits atop a surface that is not parallel to the ground. This slight variation adds some noteworthy complexities that we will cover in this section.
