Physics, 28.10.2020 19:30, legend101xD

A runner completes two laps around a 400-m track. She runs the first lap in 1 min 32 s, and the second lap in 1 min 49 s. What is her average speed?

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A runner completes two laps around a 400-m track. She runs the first lap in 1 min 32 s, and the seco...