At terminal velocity frictional force = force due to acceleration due to gravity
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It occurs when the sum of the drag force (Fd) and the buoyancy is equal to the downward force of gravity (FG) acting on the object. ... In fluid dynamics, an object is moving at itsterminal velocity if its speed is constant due to the restraining forceexerted by the fluid through which it is moving.
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due to gravity, it experiences more and more drag, which actually decreases its acceleration. When the object is moving fast enough that theforce of drag is equal to its weight, then it will no longer accelerate — it will fall at a constant speed. This is known as itsterminal velocity.
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