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quy1988
2 năm trước
1.Hãy biểu diễn lực sau: Lực kéo của xe tải 15000N theo phương nằm ngang, chiều từ trái sang phải (tỉ xích 1cm ứng với 5000 N) 2.Hãy biểu diễn lực sau: Lực kéo vật có phương nằm ngang, chiều từ phải sang trái và có độ lớn 2000 N (1 cm ứng với 500N). 3. Biểu diễn lực sau đây:Lực kéo 15 000N theo phương nằm ngang, chiều từ trái sang phải (tỉ lệ xích 1cm ứng với 3 000N) Mong mọi người giúp mình Xin giúp mình với
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