OpenStax
Open Stax: Vector Addition and Subtraction: Analytical Methods
In this interactive students will begin to understand the rules of vector addition and subtraction using analytical methods. They will apply analytical methods to determine vertical and horizontal component vectors.
Texas Education Agency
Texas Gateway: Glossary for Kinematics in Two Dimensions
This is a glossary of terms and definitions used in Chapter 3: Kinematics in Two Dimensions of the AP Physics online text.