Physics
Three children are trying to balance on a seesaw. The seesaw is 3.9 m long and pivots about a rock at its center. Louie and Laura are already sitting on opposite ends. If Martha weighs 27 kg, where should she sit so as to balance the seesaw?
50kg kid35kg kid
 is the seesaw
asked by
Anonymous

3.9/2 = 1.95
left of pivot  right of pivot
50(1.95) = 27 x + 35(1.95)
27 x = 15(1.95)
x = 15(1.95)/27 to the right of pivotposted by Damon

1.08
posted by Kier
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