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Old 7th Aug 2018, 01:54
  #290 (permalink)  
Wizofoz
 
Join Date: Jun 2001
Location: Boldly going where no split infinitive has gone before..
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Originally Posted by Jet_Fan
As you love wiki so much, let's see what it has to say about groundspeed:



What is 50 - 60?
ET TU Wiki-

https://en.wikipedia.org/wiki/Speed

in everyday use and in kinematics, the speed of an object is the magnitude of its velocity (the rate of change of its position); it is thus a scalar quantity.

A position can't have a negative rate of change.
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