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 see-saw.

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