Posted by joey on Sunday, March 15, 2009 at 11:43pm.
an adult and a s,all child get on a seesaw that has a movable fulcrum. when the fulcrum is in the middle, the child can't tift the adult. How should the fulcrum be moved so the two can seewaw

physical science  DrBob222, Monday, March 16, 2009 at 12:00am
I gave you the answer. I assume, now, that you don't have numbers to plug into the equation. But you should figure out from the equation, that qualitatively, the fulcrum must be moved toward the adult.
A__________x_________C
Adult goes down. Child goes up.
So you move the fulcrum closer to the adult.
A______x______________C
Now they can seesaw.
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