At the park, a sled is pulled by a rope along a flat surface covered with snow. There is a child sitting on the sled and the sled plus child system has a total mass of 42.0 kg. The rope is inclined at 30 degrees with the horizontal. The force of tension on the rope is 100.0 N. The coefficient of kinetic friction between the sled and the snow is 0.2. Draw a free-body diagram of the sl Determine: a) The normal force acting on the sled-child system. b) The friction force. c) The acceleration of the sled