Posted by **babidi** on Sunday, February 7, 2010 at 2:48am.

A person walks first at a constant speed of 4.50 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 3.00 m/s.

(a) What is her average speed over the entire (b) What is her average velocity over the entire trip?

trip?

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