Question

Where is the roller coaster’s kinetic energy highest?

Answer 1

The kinetic energy of a roller coaster is highest at the lowest points of the track, where the coaster is moving fastest. As a roller coaster descends from a height, potential energy is converted into kinetic energy. When the coaster reaches its lowest point, most of the potential energy has been transformed into kinetic energy, resulting in maximum speed and, therefore, maximum kinetic energy at that point.