- #1

Bottomsouth

- 27

- 0

## Homework Statement

A runner covers one lap of a circular track 40.0 in diameter in 63.2 .

If she covered the first half-lap in 28.7 , what were her average velocity for that half-lap?

## Homework Equations

We use perimeter of a cirle = 2*3.14*20m to get 125.6

## The Attempt at a Solution

I know that if the runner runs around a full lap, he or she will be at 0 velocity. But at half a lap I tried 62.8/28.7 to get 2.188. I am sure that is the speed and not the answer. I know I am making a small mistake.