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được thưởng
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Đăng nhập hàng ngày 16/02/2020
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được thưởng
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Đăng nhập hàng ngày 13/02/2020
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sửa đổi
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câu 4973
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câu 4973 thanh AB đồng chất tiết diện đều, khối lượng m=100kg. đầu B tựa trên sàn ngang,thanh nghiêng góc 20 độ, hệ số ma sát k1=0,5. Đầu A dựa vào mặt phẳng nghiêng góc 30 độ với hệ số ma sát k2=0,1 và chịu lực kéo F dọc theo mặt nghiêng. Tìm giá trị cực đại của lực kéo F để thanh vẫn cân bằng. data:image/png;base64,iVBORw0KGgoAAAANSUh 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câu 4973 thanh AB đồng chất tiết diện đều, khối lượng m=100kg. đầu B tựa trên sàn ngang,thanh nghiêng góc 20 độ, hệ số ma sát k1=0,5. Đầu A dựa vào mặt phẳng nghiêng góc 30 độ với hệ số ma sát k2=0,1 và chịu lực kéo F dọc theo mặt nghiêng. Tìm giá trị cực đại của lực kéo F để thanh vẫn cân bằng.h ình : file :///C :/Users/admin/Pictures/tt .png
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sửa đổi
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câu 4973
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câu 4973 thanh AB đồng chất tiết diện đều, khối lượng m=100kg. đầu B tựa trên sàn ngang,thanh nghiêng góc 20 độ, hệ số ma sát k1=0,5. Đầu A dựa vào mặt phẳng nghiêng góc 30 độ với hệ số ma sát k2=0,1 và chịu lực kéo F dọc theo mặt nghiêng. Tìm giá trị cực đại của lực kéo F để thanh vẫn cân bằng. link hình: 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
câu 4973 thanh AB đồng chất tiết diện đều, khối lượng m=100kg. đầu B tựa trên sàn ngang,thanh nghiêng góc 20 độ, hệ số ma sát k1=0,5. Đầu A dựa vào mặt phẳng nghiêng góc 30 độ với hệ số ma sát k2=0,1 và chịu lực kéo F dọc theo mặt nghiêng. Tìm giá trị cực đại của lực kéo F để thanh vẫn cân bằng.data:image/png;base64,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sửa đổi
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câu 4973
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câu 4973 thanh AB đồng chất tiết diện đều, khối lượng m=100kg. đầu B tựa trên sàn ngang,thanh nghiêng góc 20 độ, hệ số ma sát k1=0,5. Đầu A dựa vào mặt phẳng nghiêng góc 30 độ với hệ số ma sát k2=0,1 và chịu lực kéo F dọc theo mặt nghiêng. Tìm giá trị cực đại của lực kéo F để thanh vẫn cân bằng.link hình: file :///C :/Users/admin/Pictures/tt .png
câu 4973 thanh AB đồng chất tiết diện đều, khối lượng m=100kg. đầu B tựa trên sàn ngang,thanh nghiêng góc 20 độ, hệ số ma sát k1=0,5. Đầu A dựa vào mặt phẳng nghiêng góc 30 độ với hệ số ma sát k2=0,1 và chịu lực kéo F dọc theo mặt nghiêng. Tìm giá trị cực đại của lực kéo F để thanh vẫn cân bằng.link hình: data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAVIAAADRCAIAAAAR5K16AAAYaklEQVR4nO2db2gcxRvHT9CSnyj0RYS1rXpqhaXG9sQqZ60a8E8KKhxWaWg1RihN/IOcRm1K1I0YzGmDd9hKDhq5vIg0aCUnxiTFwGHz4qhBFglywhW2UGFf BLkX92IpeTG/F9Os29vdubu5vb293e/nVbK7MzdL8tnZm3nmmRABAASMUKsbAABwG2gPQOCA9gAEDmgPQOCA9gAEDmgPQOCA9gAEDmgPQOCA9gAEDmgPQOCA9gAEDmgPQOCA9gAEDoe1D4XwHAHA6zhvKcwHwOM0qmjIBkcaBwBoBujtAQgc+G4PQOCApQAEDmgPQOCA9gAEDmgPQOBoVPvUPovZu2MLjrQNANAUHOjti 6l 9oX2pouH3Y4bfAABe ownaAwC8jcPaLxzDCz4AXsch7fG9HoD2Ab09AIED3+0BCBzQHoDAAe0BCBwOhutAfQDaAwTnAhA4oD0AgaOK9keOHPn0009VVXWnNQAAF6iivaIoDz30UEdHhyiKfX198Xj8q6++ymQyKysrsiyXy2V3WgkAcJCaXvIHBgYEQejo6Ojq6uo28eabb8bj8Uwm8++//za7uQCAxqlJ+6tXr3744YfRaLSzs/ OWW26pkP/ FF1/ MZDIu9PxWi3wxfQBA3dQ6pFcul48ePdrd3b13715d/r6+vsXFxatXrza1iUZo/D91fXMtAMKBAaiPOkbyy+VyX18f7eH37t173333dXd353K5prXNAqP2m96jwwegPuqbwFNVtbe3l5p/9OjRXC 5Hf3ZNfoveHp09AHVS97y9qqrPP/88tZ2+3uvyy7LchBZex/WLfNHRA8ADT7hOsVik5v/ 111/6wVwuF4lEYrFYU 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sửa đổi
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câu 4973
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câu 4973 thanh AB đồng chất tiết diện đều, khối lượng m=100kg. đầu B tựa trên sàn ngang,thanh nghiêng góc 20 độ, hệ số ma sát k1=0,5. Đầu A dựa vào mặt phẳng nghiêng góc 30 độ với hệ số ma sát k2=0,1 và chịu lực kéo F dọc theo mặt nghiêng. Tìm giá trị cực đại của lực kéo F để thanh vẫn cân bằng. data:image/png;base64,iVBORw0KGgoAAAANSUhEUgAAAVIAAADRCAIAAAAR5K16AAAYakl EQVR4nO2db2gcxRvHT9CSnyj0RYS1rXpqhaXG9sQqZ60a8E8KKhxWaWg1Ri hN/IOcRm1K1I0YzGmDd9hKDhq5vIg0aCUn xiTFwGHz4qhBFglywhW2UGFfBLk X92IpeTG/F9Os29vdubu5vb293e/nVbK7MzdL8tnZm3nmmRABAASMUKsbAABwG2gPQOCA9gAEDmgPQOCA9gAEDmgPQOCA9gAEDmgPQOCA9gAEDmgPQOCA9gAEDmgPQOCA9gAEDoe1D4XwHAHA6zh vKcwHwOM0qmjIBkcaBwBoBujtAQgc+G4PQOCApQAEDmgPQOCA9gAEDmgPQOBoVPvUPovZu2MLjrQNANAUHOjti6l9oX2pouH3Y4bfAABeownaAwC8jcPaLxzDCz4AXsch7fG9HoD2Ab09AIED3+0BCBzQHoDAAe0BCBwOhutAfQDaAwTnAhA4oD0AgaOK9keOHPn0009VVXWn NQAAF6iivaIoDz30UEdHh yiKf X198Xj8q6++ymQyKysrsi yXy2V3WgkAcJCaXvIHBgYEQejo6Ojq6uo28eabb8bj8Uwm8++//za7uQCAxql J+6tXr3744YfRaLSzs/OWW26pkP/FF1/MZDIu9PxWi3wxfQBA3dQ6pFcul48e Pdrd3b13715d/ r6+vsXFxatXrza1iUZo/ D91fXMtAMKBAaiPOkbyy+VyX18f7eH37t173333dXd353K5prXNAqP2m96jwwegPuqbwFNVtbe3l5p/ 9OjRXC 5Hf3ZNfoveHp09AHVS97y9qqrPP/ 88tZ2+3uvyy7LchBZex/WLfNHRA8ADT7hOsVik5v/111/6wVwuF4lEYrFYU 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câu 4973 thanh AB đồng chất tiết diện đều, khối lượng m=100kg. đầu B tựa trên sàn ngang,thanh nghiêng góc 20 độ, hệ số ma sát k1=0,5. Đầu A dựa vào mặt phẳng nghiêng góc 30 độ với hệ số ma sát k2=0,1 và chịu lực kéo F dọc theo mặt nghiêng. Tìm giá trị cực đại của lực kéo F để thanh vẫn cân bằng.link h ình : file :///C :/Users/admin/Pictures/tt .png
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sửa đổi
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câu 4973
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câu 4973 thanh AB đồng chất tiết diện đều, khối lượng m=100kg. đầu B tựa trên sàn ngang,thanh nghiêng góc 20 độ, hệ số ma sát k1=0,5. Đầu A dựa vào mặt phẳng nghiêng góc 30 độ với hệ số ma sát k2=0,1 và chịu lực kéo F dọc theo mặt nghiêng. Tìm giá trị cực đại của lực kéo F để thanh vẫn cân bằng.
câu 4973 thanh AB đồng chất tiết diện đều, khối lượng m=100kg. đầu B tựa trên sàn ngang,thanh nghiêng góc 20 độ, hệ số ma sát k1=0,5. Đầu A dựa vào mặt phẳng nghiêng góc 30 độ với hệ số ma sát k2=0,1 và chịu lực kéo F dọc theo mặt nghiêng. Tìm giá trị cực đại của lực kéo F để thanh vẫn cân bằng. 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sửa đổi
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câu 4973
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câu 4973 thanh AB đồng chất tiết diện đều, khối lượng m=100kg. đầu B tựa trên sàn ngang,thanh nghiêng góc 20 độ, hệ số ma sát k1=0,5. Đầu A dựa vào mặt phẳng nghiêng góc 30 độ với hệ số ma sát k2=0,1 và chịu lực kéo F dọc theo mặt nghiêng. Tìm giá trị cực đại của lực kéo F để thanh vẫn cân bằng.
câu 4973 thanh AB đồng chất tiết diện đều, khối lượng m=100kg. đầu B tựa trên sàn ngang,thanh nghiêng góc 20 độ, hệ số ma sát k1=0,5. Đầu A dựa vào mặt phẳng nghiêng góc 30 độ với hệ số ma sát k2=0,1 và chịu lực kéo F dọc theo mặt nghiêng. Tìm giá trị cực đại của lực kéo F để thanh vẫn cân bằng.
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đặt câu hỏi
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câu 4973
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thanh AB đồng chất tiết diện đều, khối lượng m=100kg. đầu B tựa trên sàn ngang,thanh nghiêng góc 20 độ, hệ số ma sát k1=0,5. Đầu A dựa vào mặt phẳng nghiêng góc 30 độ với hệ số ma sát k2=0,1 và chịu lực kéo F dọc theo mặt nghiêng. Tìm giá trị cực đại của lực kéo F để thanh vẫn cân bằng.  |
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