If a pilot pulls back sharply on the elevator control exceeding 5G's during a dive at 200 KIAS, what is this an example of?

When a pilot pulls back sharply on the elevator control while diving at a speed of 200 KIAS and exceeds 5G's, this situation exemplifies an accelerated stall. An accelerated stall occurs when the aircraft experiences a higher load factor than it was designed for, which can happen when the aircraft is maneuvered aggressively, particularly during abrupt control inputs.

When the load factor increases significantly, the critical angle of attack for the wings can be reached at a higher speed than normal, which leads to a stall under conditions where the aircraft is still moving at a relatively high airspeed. This phenomenon emphasizes the importance of recognizing that stalls can occur not only at lower speeds but also during high-speed maneuvers when excessive G forces are involved.

The other stall types mentioned, such as power-off stall, slow-cruise stall, and power-on stall, refer to specific conditions where the airplane is in different phases of flight or configurations, generally characterized by lower angles of attack and different power settings. However, they do not encapsulate the scenario of a steep pull-up in a dive resulting in an accelerated stall.