Finding the average velocity for this problem

ixerr

1. The problem statement, all variables and given/known data
Larry leaves home at 9:01 and runs at constant speed 400.0 yards due west to a lamppost. He reaches the lamppost at 9:06, immediately turns and runs due east 1000.0 yards to a tree. Larry arrives at the tree at 9:11. What is Larry's average velocity (in yd/min) for the entire run?


2. Relevant equations



3. The attempt at a solution

Spinnor

Note the difference between average speed and average velocity in the following:

http://www.worsleyschool.net/science.../velocity.html