I have been trying to learn the proper acceleration math , and dont understand d[tex]^{2}[/tex]x , or d[tex]^{2}[/tex]t as it appears , where d seems to have the normal meaning of delta.(adsbygoogle = window.adsbygoogle || []).push({});

Is this simply equivalent to dx[tex]^{2}[/tex] or dt[tex]^{2}[/tex] ????

Thanks

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# Proper acceleration question

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