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Physics 19 Online
OpenStudy (kkutie7):

A runner runs in a straight line with the average velocity of 5i-hat m/s for 5 minutes and then with an average velocity of 4i-hat m/s 4 minutes. a) what is her total displacement: b)What is her average velocity during this time c) suppose her goal is to run 5 km in 15 minutes. What average velocity must she have over the remaining portion of her run?

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