2. Word Problems. 3pts [Formuta 1pt, steps 1pts, final answer with unit 1pt] A skier starts from rest at the top of a 45.0 m hill, coasts down a 30 slope into a valley and continues up to the top of a 40.0 m hill. Both hill heights are measured from the valley floor. Assume the skier puts no effort into the motion (they simply coast) and there is no friction. How fast will the skier be moving on the top of the 40.0 m hill? Use g=10.0m/s