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2024-05-08 20:57:37
a) Độ dãn của lò xo khi treo quả nặng 50g là
8 - 6 = 2 cm
b) Độ dàn của lò xo khi treo quả nặng 100g là
2 x 2 = 4 cm
Độ dài cả lò xo khi treo quả nặng 100g là
6 + 4 = 10 cm