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August 30, 2015

Homework Help: physics

Posted by mattie on Tuesday, August 31, 2010 at 9:28pm.

A person walks first at a constant speed of 4.90 m/s along a straight line from point A to point B and then back along the line from B to A at a constant speed of 2.70 m/s.
(a) What is her average speed over the entire trip?

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