Physics, 06.10.2021 18:30 Maria3737

Một vật có khối lượng 75g được ném lên từ độ cao 1,1m so với mặt đất với tốc độ 12m/s. Khi nó đạt độ cao2,1m thì tốc độ của nó là 10,5m/s. a/ Tính công đã thực hiện trên vật bởi trọng lượng của nó?b/ Cơ năng của vật bị tiêu tán bởi lực cản của không khí?

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Một vật có khối lượng 75g được ném lên từ độ cao 1,1m so với mặt đất với tốc độ 12m/s. Khi nó đạt độ...

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