Question

a runner runs around a circular track covers a distance of 200m, ending in the spot where she started if the entire trip takes 50 seconds , what is her average velocity?

Answer 1

0 ms-1

Step-by-step explanation:

This is a trick question.

* Don't be confused with average speed with average velocity

Since the runner ends in the same spot as she started,

the total displacement covered by the runner is zero.

Since average velocity = total displacement/total time,

As total displacement is zero ,

average velocity = 0 / 50 ms-1

= 0 ms-1