Consider a frictionless roller coaster. Other than the starting and ending points, which point in the coaster's motion has the least kinetic energy and which point has the least potential energy? least kinetic energy at the lowest point; least potential energy at the lowest point least kinetic energy at the highest point; least potential energy at the lowest point The kinetic energy is the least when the coaster's speed is the slowest. This occurs when the coaster is at its highest position. The potential energy is the least when its height is the lowest. least kinetic energy at the highest point; least potential energy at the highest point least kinetic energy at the lowest point; least potential energy at the highest point incorrect At the lowest point in its motion, the coaster is moving its fastest so has maximum kinetic energy. At the highest point in its motion, the coaster has maximum potential energy