Does the buoyant force on a submerged inflated balloon increse as it sinks?
Floating objects are governed by Archimedes Principle which states that the weight of a floating object is equal to the water it displaces. A corollary of Archimedes Principle is that the buoyant force acting on an object is equal to the volume of water displaced. Therefore, when a balloon is compressed as it submerges it displaces less water and the buoyant force decreases proportionately.