A balloon that weighs 1 N is suspended in air, drifting neither up nor down. How much buoyant force acts upon it? What happens if the buoyant force decreases? If the buoyant force increases? A balloon that weighs 1 is suspended in air, drifting neither up nor down. How much buoyant force acts upon it? What happens if the buoyant force decreases? If the buoyant force increases? 1 N; it rises; it sinks 0 N; it rises; it sinks 0 N; it sinks; it rises 1 N; it sinks; it rises