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