If the velocities of object $A$ and $B$ are $v_A$ and $v_B$ respectively,then write the equation of the relative velocity of $A$ with respect to $B$.

(N/A) The relative velocity of an object $A$ with respect to an object $B$ is defined as the rate of change of the position of $A$ as observed from $B$.
Mathematically,the relative velocity of $A$ with respect to $B$,denoted as $v_{AB}$,is given by the vector difference of their velocities:
$v_{AB} = v_A - v_B$
Here,$v_A$ is the velocity of object $A$ and $v_B$ is the velocity of object $B$ with respect to a common reference frame (usually the ground).