Posted by **shannon** on Wednesday, October 13, 2010 at 8:12pm.

A person walks 8.4522x10^1 m East, then turns around and walks 7.8409x10^1 m West. The total time to walk this distance was 8.7343x10^2 s. What is the speed of the walker, expressed to 3 significant figures?

- Physics -
**TutorCat**, Wednesday, October 13, 2010 at 8:15pm
Speed is scalar! therefore, it has magnitude, but no direction.

Add the two distances and divide by time!

- Physics -
**shannon**, Wednesday, October 13, 2010 at 8:58pm
ok and if i have more then two distances then do i add all 3 then divide??

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