Physics, 29.07.2021 20:00 angel234wilcox
Một con lắc lò xo có độ cứng k = 100N/m, khối lượng vật nặng m = 500g dao động điều hòa theo phương thẳng đứng. Lấy g = 10m/s2. Lực đàn hồi của lò xo lúc vật đi qua vị trí cách vị trí cân bằng 3cm về phía trên là:
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Một con lắc lò xo có độ cứng k = 100N/m, khối lượng vật nặng m = 500g dao động điều hòa theo phương...
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