Suppose two children are using a uniform seesaw of mass 100 g that is 3.00 m long and pivoted at 2 m from the left edge, and a 30.0 kg child sits 1.40 m from the center of mass of the seesaw on the right side.(a)Calculate where the second 18.0-kg child must sit from thepivot on the left side to balance the seesaw. [6 points] (b)How far from the left edge of the seesawwill thesecond child sit