Question

Suppose a runner completes one lap around a 400-m track in a time of 50 s. Calculate the average velocity of the runner.
Express your answer in meters per second to the nearest integer.

Answer 1

zero
distance = 400
displacement = 0
(came back to the same spot)

Answer 2

and if you are Rachel, that is a very different question from the earlier one.

speed = distance/time
velocity = displacement /time

for speed you need a speedometer
for velocity you need a speedometer and a compass

Answer 3

0/400

Answer 4

8m/s

Answer 5

i don't know search in google