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SATII物理专题分析 Displacement.

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  SAT考试是美国高中生进入美国大学的标准入学考试,包括SAT1和SAT2。SAT2是专项测验,有数学、物理、化学、生物、外语等,大部分为选择题,是可以选科的。今天我们来学习SATII物理专题分析 Displacement,希望对大家的复习有所帮助。

  Displacement is a vector quantity, commonly denoted by the vector s, that rlects an object’s change in spatial position. The displacement of an object that moves from point A to point B is a vector whose tail is at A and whose tip is at B. Displacement deals only with the separation between points A and B, and not with the path the object followed between points A and B. By contrast, the distance that the object travels is equal to the length of path AB.

  

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