A driver speeds along a level race track, then takes her foot off the gas pedal.
Why does the car eventually come to a stop?
A. The car's kinetic energy is transformed into thermal energy by
friction.
OB. The car's kinetic energy is transformed back into chemical
potential energy that is stored in the fuel.
C. The car's kinetic energy is transformed into gravitational potential
energy.
D. The car's kinetic energy is eventually used up.