What is 30 m/s northwest, an example of

30 m/s northwest is an example of velocity. Velocity is defined as Distance divided by Time.

Let me write an example.

Timmy was driving northeast, having a distance of 240m in 8s. What was his velocity?

To solve for his velocity, we'd have to divide our distance, 240m by our time, 8s.
240 / 8 = 30.

Timmy's velocity is 30 m/s NorthEast.

I hope this helps!

Idont understand the question