Two children sit on a see-saw which is 6 m long and pivoted on an axis at its center. The first child has a mass of 20 kg and sits at the left end of the see-saw, while the second child has a mass of 40 kg and sits somewhere on the see-saw to the right of the axis. At what distance from the axis should the second child sit to keep the see-saw horizontal?

2.5 m

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1 m

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3 m

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1.5 m

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Solution

The correct option is D
1.5 m

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The correct option is D 1.5 m

The correct option is D
1.5 m