Final answer:
A car rounding a bend at a constant speed represents dynamic equilibrium, where the forces are balanced but there is motion.
Step-by-step explanation:
The object that exemplifies dynamic equilibrium is a car rounding a bend at a constant speed. This situation is characterized by the forces acting on the car being in balance while the car is in motion. According to Newton's First Law, in dynamic equilibrium, the net external force is zero, and there is no acceleration, but the object can still be moving at a constant velocity. In contrast to static equilibrium, where the object is at rest, dynamic equilibrium involves motion. Examples of objects in dynamic equilibrium include a car traveling at a constant velocity and a person gliding in the air at a constant velocity at one altitude.