Trying To help My Daughter With A Physics ?

[Forgo]

She has to figure out where to place a second kid on a seesaw to balance the seesaw. They give you the weight of the seesaw in the problem. Is this relevant? Or do you ignore the weight of the seesaw?

[deltabourne]

If you place the pivot exactly halfway between the board, and assuming the board is uniform in mass/density, then the force of it's weight will act right on the pivot so it won't cause a torque.. meaning you can pretty much exclude it from the equation

[Forgo]

Thanks.