Which forces are involved in causing an aircraft to enter an accelerated stall?

An accelerated stall occurs when an aircraft experiences a stall while undergoing a turn or other maneuver that increases the load factor or G-forces being exerted on it. In this context, gravity plays a crucial role as it constantly acts downward on the aircraft's mass. When the aircraft is turning or banked, centrifugal force becomes a significant factor, effectively pulling the aircraft outward from the turn. This creates a situation where the load factor increases, leading to a greater angle of attack than what the wings can sustain, resulting in a stall.

Thus, the combination of gravity and the increased centrifugal force during an accelerated maneuver directly contributes to the occurrence of an accelerated stall. The other forces listed—such as lift, drag, thrust, and weight—while essential in other contexts of flight dynamics, do not specifically explain the mechanics involved in an accelerated stall scenario.