Question

A runner runs four laps with a constant velocity around a 400 meter track in 5 min and 30 s. What is his average speed?

Answer 1

Answer:

measures the distance between the starting

Displacement is a vector quantity that point and ending point, not taking the actual path traveled into account. At the end of four laps, the athlete will be back at the starting line for the track, so the athletes total displacement will be zero.