Biology
Biology, 28.07.2021 17:00, idontknow113

Ở độ cao 1 m, người ta ném thẳng đứng lên trên một vật nặng 0,2kg với vận tốc ban đầu bằng 4 m/s. Bỏ qua sức cản không khí. Lấy g = 10 m/s^2. Công của trọng lực khi đi chuyển từ điểm A ở độ cao 1,5 m đến điểm B khi vật có vận tốc 6m/s là

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Ở độ cao 1 m, người ta ném thẳng đứng lên trên một vật nặng 0,2kg với vận tốc ban đầu bằng 4 m/s. Bỏ...

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