A jogger maintains a speed of 3.2 m/s for 216 m until he encounters a stoplight, and he abruptly stops and waits 29 s for the light to change. He then resumes his exercise and maintains a speed of 3.3 m/s for the remaining 47 m to his home.
(a) What was his average velocity for this entire time interval?
(b) What were his maximum and minimum velocities, and how do they compare with this average?