A mom is pulling her son and daughter who are sitting in two sleds that are connected by a rope. The mass of the girl and sled 1 is 54 kg, the mass of the boy and sled 2 is 61 kg. The mom is pulling so that the sleds move at a constant velocity. If the coefficient of kinetic friction between the sleds and the ice is 0.24 , what is the tension in the string between them? 140 N 150 N 160 N 170 N