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Physics, 25.06.2021 17:10 gervenonbrain

Một hệ gồm hai vật giống nhau có khối lượng m1 = m2 = 200 g dính với nhau bởi một lớp keo mỏng. Một lò xo nhẹ có chiều dài tự nhiên là 40 cm, treo thẳng đứng với đầu trên cố định, đầu dưới gắn vào m1. Gia tốc trọng trường g = 10 m/s2. Khi hệ vật cân bằng, lò xo dài 44 cm. Nâng hệ vậtthẳng đứng đến khi lò xo có chiều dài 38 cm rồi thả nhẹ. Biết hai vật rời nhau khi lực kéo giữa chúng đạt tới FM = 3,5 N. Biên độ dao động của vật m1 khi rời khỏi vật m2 là A. 5,1 cm. B. 4,3 cm. C. 6,2 cm. D. 3,2 cm

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Một hệ gồm hai vật giống nhau có khối lượng m1 = m2 = 200 g dính với nhau bởi một lớp keo mỏng. Một...
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