The two vectors A and B are perpendicular to each other.
Explanation – Let θ = angle between the two vectors A and B.
Therefore component of vector \(\vec A\) along the direction of vector \(\vec B\) is obtained resolving vector \(\vec A\) i.e. A cos θ
Now according to statement
A cos θ = 0
cos θ = 0 = cos 90º
∴ θ = 90º
i.e., \(\vec A\) ⊥ \(\vec B\)