New to physics, and I'm a little confused on one problem on my homework:(adsbygoogle = window.adsbygoogle || []).push({});

1) A runner runs 5.0km along the course east, then turns around and runs 5.0km west along the same path. She returns to the starting point in 40 min.

What is her average speed and velocity?

The speed was easy to get; .25km/h

I'm not sure if I'm doing this right, but I keep ending up with something bizzare like 0/-40 for the average velocity.

I mean, the equation IS d sub 1 - d sub 2

-----------------------

t sub 1 - t sub 2

Sorry if its a dumb question, but am I doing anything wrong?

- A confused High school student

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