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Old 24th Mar 2023, 23:56
  #48 (permalink)  
MechEngr
 
Join Date: Oct 2019
Location: USA
Posts: 877
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I know this one - speed is a scalar measurement, velocity is a vector measurement requiring both speed and direction. A vector may be divided or described by components, which are also vectors.

However, one might express only the scalar part, the speed, of a vector sum. So a forward velocity and a vertical velocity can be combined but only the resulting speed reported.
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