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高铁列车在启动阶段的运动可看作初速度为零的匀加速直线运动, 在启动阶段, 列车的动能

Gaokao · Physics · previous-year question

  1. A.与它所经历的时间成正比
  2. B.与它的位移成正比
  3. C.与它的速度成正比
  4. D.与它的动量成正比

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