Question

Can a small child play with a fat child in a see-saw Explain how?

Answer 1

Yes... if he take a weight like a stone,or anybody else with him or something like that.. to make him weight equal to the other one.
then he can manage because now the see saw will be in equilibrium.

Answer 2

No, because the fat child is heavy and the small child is only less heavy because of the weight of the fat kid the fat kid will be down and the small will be down always.