Question 773625
if a line of vehicles is traveling, following one another, why and how is it that the further back the line, the faster you have to drive to keep up?  i see discrepencies of at least 10 mph from front to rear vehicles.
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That's not true.
If one vehicle move 10 mi/hr faster, after an hour it would be 10 miles ahead.
They all have to move at the same speed to maintain their relative positions.