Physics, 30.07.2021 03:50 nkh69

Cho hai lực biểu diễn như trên hình vẽ,F1=300N, F2=270N. Xác định độ lớn và các góc chỉphương của lực tổng hợp của hai lực này

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Cho hai lực biểu diễn như trên hình vẽ,F1=300N, F2=270N. Xác định độ lớn và các góc chỉphương của lự...

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