Definition:Radial Component

Definition
Consider a vector $\mathbf v$ embedded in a polar plane.

Let $\mathbf v$ be applied at a point $p$.

Let:
 * $\mathbf v_r$ be the component of $\mathbf v$ in the direction of the radial coordinate of $p$
 * $\mathbf v_\theta$ be the component of $\mathbf v$ in the direction of the angular coordinate of $p$

The component $\mathbf v_r$ is the radial component of $\mathbf v$.

Also see

 * Definition:Transverse Component