Question

When you see a traffic light turn red, you apply the brakes until you come to a stop. if your initial speed was 14 m/s, and you were heading due north, what was your average velocity during braking?

Answer 1

Average v = (initial v + final v)/2
= (14 m/s + 0 m/s)/2
= 7 m/s

Your average velocity during braking is 7 m/s