I'm having a difficulty determining the average velocity of a problem:(adsbygoogle = window.adsbygoogle || []).push({});

A person walks first at a constant speed of 4.80 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 3.40 m/s.

I figured out average speed to be:

avg speed = distance traveled/time of travel

[4.8+3.4]/2 = 4.1

(4.8)(3.4) = 16.32

16.32/4.1 = 3.98 m/s

but I can't figure out the average velocity:

avg velocity = displacement/time

I know direction matters in velocity but I can't figure it out even if I make up numbers for the distance and use the velocities provided.

Does anyone know how to figure out the avg velocity. Help would be much appreciated, thank you.

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# Homework Help: Avg velocity and speed question

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