Two children on ice skates pull toward each other on a rope held taut between them. The inertia of one child is \(30 \mathrm{~kg}\), and the inertia of the other is \(25 \mathrm{~kg}\).

(a) If at one instant the \(30-\mathrm{kg}\) child is accelerating at \(1.0 \mathrm{~m} / \mathrm{s}^{2}\) to the left, what is the acceleration of the \(25 \mathrm{~kg}\) child at that instant? 

\((b)\) What happens to each acceleration if the \(25-\mathrm{kg}\) child stops pulling and just hangs on?