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A person walks first at a constant speed of 2 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 4 m/s. What is the average speed (in m/s) over the entire trip?
Select one:
a. 2.67
b. 1.33
c. 5.33
d. 2.00
e. zero
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A person walks first at a constant speed of 2 m/s along a straight line from point A to point B and...
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