Atrain leaves the station heading south on the tracks. it takes 5 seconds to reach 50 miles per hour. it completes the entire 100 mile trip in 2 hours. calculate the trains average speed and velocity over the two hour trip. show your work. identify each of the measurements are a ascalr or vector.
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Atrain leaves the station heading south on the tracks. it takes 5 seconds to reach 50 miles per hour...
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