1. A child pulls a sled with mass 9.0kg through the snow(note: no coefficient of friction given, but there _is_ friction between sled & snow). The sled accelerates at 1.0 m/s2. The rope exerts 27Nt on the sled in the forward direction. a) what force must the rope exert on the child (magnitude & direction)? b) What is the magnitude of the frictional force on the sled (hint: it's in the opposite direction of the sled's motion)? 2. Relevant equations F=ma 3. The attempt at a solution a) 27 Nt, due to Newton's 3rd law, in the opposite direction of the child/sled's motion. b) Frope - Fk = Ftotal = ma Frope = Fk + ma 27 = Fk + (9 * 1) 18Nt = Fk are my answers correct? Should their signs be negative, because they are in the opposite direction of the sled's motion? Have I made any glaring omissions regarding the rope's tension?