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vophuduc8758
1 năm trước
Một vật có khối lượng 2 kg, và động năng 100 J. Động lượng của vật có độ lớn là A. 165,3 kg.m/s. B. 20 kg.m/s. C. 6,3 kg.m/s. D. 14,1 kg.m/s.
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