Talk:Relative velocity
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Thank you for making the clarifications to some of the written portions of the article, they are certainly more clear than what I had originally wrote. On the other hand, this article was not flawed, as the difference between a + b and a - ( - b ) is strictly a matter of convention and in fact they are completely equivalent statements. Also, merely switching signs does not change the physics, and again is a matter of convention that does not at all render the physics as flawed.
Robert A. Mitchell 21:05, 11 October 2006 (UTC)
The physics on this page is incorrect.
The relative velocity of person A (moving with velocity a) with respect to person B (moving with velocity b)
is the vector a - b
The entire article is flawed accordingly.
Tayana 16:32, 20 September 2006 (UTC)
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- The relative velocity of A with velocity a relative to B with velocity b is not the vector sum but is the vector difference a - b.
Your original article stated that the relative velocity is the vector sum (presumably a + b) while the cited equation show this as vector difference (a - b) , which is the correct answer, but not in accord with your statement as summation of velocities [it is accepted that (a + b) and (a - b) are sumations, but getting the sign of velocity wrong fails to understand the basic physics of the situation.]. The relative velocity a - b applies always which resolves to a + b in a subset of cases
Tayana 20:29, 27 October 2006 (UTC)
