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Gaokao Physics Practice Question

一同学将铅球水平推出,不计空气阻力和转动的影响,铅球在平抛运动过程中( )

  1. A.机械能一直增加
  2. B.加速度保持不变
  3. C.速度大小保持不变
  4. D.被推出后瞬间动能最大

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