1. The problem statement, all variables and given/known data A 18-kg child is sliding on an icy surface toward her mother at 3.0 m/s. Her 62-kg mother starts toward her at 2.0 m/s, intending to catch her. 2. Relevant equations KEi= (1/2) (m1)(v1)^2 + (1/2) (m2)(v2)^2 KEconv= (1/2)μ(v12)^2 μ= (m1m2)/(m1+m2) v12= |v2 - v1 | 3. The attempt at a solution KEi= 205 kJ μ= 13.95 kg v12 = 1 m/s KEconv= 6.975 6.975/205= .034 Percent would be 3.4%, not sure what I'm doing wrong.