Question

question 12
if an automobile is rolling on a flat surface, with no driver, and no power from the engine, what causes the automobile to come to an eventual stop?
pulling force
magnetic forces
brakes
friction

Explanation:

When an automobile rolls on a flat surface with no driver and no engine - power, friction between the tires and the surface and air - resistance act as resistive forces. Friction opposes the motion of the automobile and gradually slows it down until it stops. There is no pulling force, magnetic forces are not relevant here as there is no magnetic interaction described, and since there is no driver, the brakes are not applied.

Answer:

Friction