it's like driving from a to b with constant acceleration,

来源: WSLama 于 2012-12-18 20:28:37 [档案] [旧帖] [给我悄悄话] 阅读数 : (67 bytes)

回答: if before the move, delta is .52, then after the $2 move 由 WSLama 于 2012-12-18 20:21:13

the average speed should be used, not the speed at a or b...

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