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The uniform seesaw shown below is balanced on a fulcrum located 3.0 m from the left end. The smaller boy on the right has a mass of 40 kg and the bigger boy on the left has a mass 80 kg. What is the mass of the board? 40 kg 10 kg 80 kg 30 kg

The uniform seesaw shown below is balanced on a fulcrum located 3.0 m from the left end. The smaller boy on the right has a mass of 40 kg and the bigger boy on the left has a mass 80 kg. What is the mass of the board? 40 kg 10 kg 80 kg 30 kg

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The uniform seesaw shown below is balanced on a fulcrum located 3.0 m from the left end. The smaller boy on the right has a mass of 40 k g and the bigger boy on the left has a mass 80 k g . What is the mass of the board? 40 k g 10 k g 80 k g 30 k g

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