Question 2 (1 point) An electric motor does 450 000J of Work to lift a roller coaster car to its starting peak. What is the maximum height of this peak if the roller coaster car/occupants has a mass of 900kg. (5) Submit your numerical answer to two significant digits here and full solutions to the drop box. Diagrams for energy questions show the overall situation and what energies are significant at the required points of interest. A