1. On a trip to visit your cousins, who live 60 miles away, your mother drives the first half of the trip at 60 miles per hour. She then drives the final 30 miles at 40 miles per hour. What is your average velocity for the whole trip?
A. First find an answer by averaging the two velocities.
B. Second, use the definition of average velocity to find a different value for average velocity.]
C. Which one is correct and why?