Q: If we use reasonably high constant
accelerations, how long does it take to travel across the country, say,
or across the planet?
[24 Jan 2002]
A: If we accelerate and decelerate uniformly
with acceleration ±a over a total distance s
time = t = √(4s / a), midpoint speed = v = √(as)
so for a few sample accelerations we have
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