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½ mu^2 = ½ mv^2 ½ ms^2 , w = KE_v KE_u My attempt is that I think that, since the equation was derived in an interaction between particles (proving that the angle between the subsequent paths of both particles must be 90 degrees), that acceleration (in m/s^2) is basically negligable since it is so small that it could be rounded off to 0DISCLAIMER I did not make the visuals in this video Someone sent me short Caramelldansen clips of various Ranma characters I thought I'd throw them all to¥ ý x Ç À z W â (Fanelli et al, 10) K õ ç v i â x à ¯ § q t ½ ³ ß W Þ à ¥ u , ¥ 2 Ç ¥ K õ x Þ Ã v ! 2 v" Ú§½È¢ "¯^