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- Two children weighing 15 and 22 kilograms are sitting on opposite sides of a seesaw, both 2 meters from the axis of rotation. Where on the seesaw should a 10-kilogram child sit in order to achieve equilibrium?The 10-kilogram child should sit on the same side as the ? kilogram child, ? meter(s) from the axis of rotation.This equation is rewritten as equation of order one - linear in new variable w. What would be the exact form of the general solution of this linear DE?Show that applying the change of variable u = f(y) in the equation (1) a linear equation of first order is obtained. Use this to solve the initial value problem