1. The problem statement, all variables and given/known data A San Francisco cable car loses its brakes and runs down a hill 30 m high. Assuming there is no friction, which of the following represents the energy changes that occurred? a. potential energy to kinetic energy b. kinetic energy to potential energy c. potential energy to heat energy to kinetic energy 2. Relevant equations Potential Energy - The energy possessed by a body by virtue of its position relative to others, stresses within itself, electric charge, and other factors. Kinetic Energy - Energy that a body possesses by virtue of being in motion. 3. The attempt at a solution a. potential energy to kinetic energy Is the correct answer a.?