Social Studies, 13.06.2020 08:57, dunayahsu

Three of your friends are sitting on one end of a seesaw. The combined weight is 275 N. The length from the fulcrum to your friends is 2.5 m. The rest of the seesaw (from the fulcrum to you) is 4.5 m. What effort force is needed to lift your friends?

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Three of your friends are sitting on one end of a seesaw. The combined weight is 275 N. The length f...