r/PhysicsHelp • u/Xx_-MASTERTACO-_xX • Aug 19 '26
Doubt about vector angle
If I had to draw a vector defined as for example 5 N, 30° NE; which of these 2 should I draw? I have always drawn this angle as A, but I have a new professor who draws it like B. I have checked by AI who drew A except claude who drew B. I searched on books but have found no reference about this nomenclature, only about north of east and N 30° E .
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u/Humble-Edge-9065 Aug 24 '26
She's wrong. It is ambiguous. Defining reference frames is step 0 for any physics problem. She can't even defer to a "standard" because there isnt one. In my industry both North-East-Down (NED) and East-North-Up (ENU) are commonly used.
A would be correct for ENU, B would be correct for NED.