Why are objects that fall near earth’s surface rarely in free fall? gravity does not act on objects near earth’s surface. air exerts forces on falling objects near earth’s surface. the objects do not reach terminal velocity. the objects can be pushed upward by gravity.

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