February 21, 2017

Homework Help: physics

Posted by rachel on Monday, March 12, 2012 at 12:32am.

John Johnson set a world record for the "100.0" m run with a time of 9.86 s. If, after crossing the finish line, John walked directly back to his starting point in 90.9 s, what is the magnitude of his average velocity for the 200.0m?

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