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ankid1412
2 năm trước
Một chất điểm chuyển động không vận tốc đầu dưới tác dụng của lực không đổi có độ lớn F = 0,15 N. Động lượng chất điểm ở thời điểm t = 3 s kể từ lúc bắt đầu chuyển động là A. 0, 15 kg.m/s. B. 0,3 kg.m/s. C. 0,45 kg.m/s. D. 1,5 kg.m/s
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