\section{Kinematics}

Kinematics describes motion by first choosing a reference frame and then tracking how an object's position vector $\vec{r}(t)$ changes with time. In AP Physics C: Mechanics, the focus is on motion in inertial frames, with 1D and 2D models that connect physical situations to equations, graphs, and vector components.

This unit develops the core chain of ideas for motion: define position and displacement, differentiate locally to obtain $\vec{v}$ and $\vec{a}$, interpret motion graphs, use constant-acceleration relationships when applicable, and extend the same framework to relative motion and projectile motion with negligible air resistance.

\input{concepts/mechanics/u1/m1-1-scalars-vectors}

\input{concepts/mechanics/u1/m1-2-position-displacement}

\input{concepts/mechanics/u1/m1-3-velocity-acceleration}

\input{concepts/mechanics/u1/m1-4-motion-graphs}

\input{concepts/mechanics/u1/m1-5-constant-acceleration}

\input{concepts/mechanics/u1/m1-6-relative-projectile}