Question: On your way to class you are walking North up the oval. From Dale Hall you walk 180 m towards Nielsen Hall when you meet a friend heading the other direction. You have to ask him a question so you turn around and walk back South talking with him for 75 m. Then you turn back around and hurry on to class. If your speed is a constant 0.95 m/s as you are walking (both directions), what is your average velocity from the time you leave Dale Hall to the time you leave your friend to go to class?