Two children, Raffi and John, sitting on sleds tied together with a massless rope, are being dragged across a frozen river b) their playful Siberian husky Rex who is supplying a 112−N horizontal force (see figure below). The coefficient of friction between the sleds and the ice is 0.02, the combined mass of Raffi and his sled is 41.5 kg, and the combined mass of John and his sled is 56.5 kg. (Assume Raffi is the child on the left and John is the child on the right.) (b) What is the acceleration of the system? (Enter the magnitude only.) m/s2 (c) What is the tension FT in the rope connecting the two sleds? N
