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Timeline for Can we add any two vectors?

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Sep 15, 2014 at 5:49 comment added Fattie @user166748 , you can not add velocity and angular frequency. It's Just That Simple. Fibonatic is talking about a competely unrelated mathematical issue. Note, user166748, you don't have to worry about vectors AT ALL in this question: think of your car: consider the "speed" (180 km/h) and the "mass" (1800 kg). Can you add those things? Answer -- NO. Honestly it's just that simple. Don't forget that "one dimensional" things (eg "speed", "mass") are indeed also vectors! ("1 dimensional vectors!") Your question is honestly that simple. The textbook meant the same type of things.
Sep 15, 2014 at 2:48 comment added David Z While technically correct, I don't know that this is what anyone means when they talk about adding vectors (at least, 99% of the time, and almost surely not in this question).
Sep 14, 2014 at 15:42 comment added Qmechanic Right, fibonatic's answer is essentially referring to the direct sum construction.
Sep 14, 2014 at 15:36 comment added fibonatic @user166748 yes, but it probably will not have any physical meaning, it just that mathematicaly it is possible by using more dimensions.
Sep 14, 2014 at 15:33 comment added geek101 so we can add a velocity vector to a angular frequency vector?
Sep 14, 2014 at 15:31 history answered fibonatic CC BY-SA 3.0