Posted by **Kyla** on Thursday, November 18, 2010 at 8:59pm.

Three children are trying to balance on a seesaw, which consists of a fulcrum rock, acting as a pivot at the center, and a very light board 6.0 long . Two playmates are already on either end. Boy A has a mass of 50 , and girl B a mass of 35 . Where should girl C, whose mass is 25 , place herself so as to balance the seesaw?

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