Matthew starts from rest on top of an 8.45m high sledding hill. He slides down the 32 degree incline and across the plataeu at its base. The coeffecient of friction between the sled and snow is 0.128 for both the hill and the plataeu. Matthew and the sled have a combined mass of 27.5kg. Determine the distance Matthew will slide along the level surface before coming to a stop?