galop3852 galop3852
  • 21-07-2021
  • Physics
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Quả bóng 200g chuyển động với v 4m/s đập vào tường rồi bật ra ngược chiều với cùng tốc độ độ biến thiên động lượng của quả bóng là

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takeraparks0668
takeraparks0668 takeraparks0668
  • 21-07-2021
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