Which statement BEST explains why a car that is rolling on a level surface will eventually come to a stop? Select one: Frictional forces oppose the motion of the car.
Forward motion slowly runs out as energy is expended.
Inertia acting on an object will dissipate
The natural state of an object is to be at rest.

In a system with only a single force acting upon a body, what is the relationship between the change in kinetic energy and the work done by the force? answers: work is equal to the change in kinetic energy.work depends on the square of the change in potential energy.work is equal to the negative of the change in kinetic energy.work is equal to the square of the change in kinetic energy