A runner travels 1,5 laps around a circular trackin a time of 50s.
The diameter of the track is 40m and its circumference is 126m.
a) Find the average speed of the runner
b) Find the magnitude of the runner's average velocity.
The Attempt at a Solution
d = r*t
r = d/t = (126*1.5)/50 = 189/50 = 3.78 m/s