A spherical inflated balloon is submerged in a pool of water. if it is further inflated so that its radius doubles, how is the buoyant force affected?

Question

Physics

Rodolfo Walter

3 December, 10:01

A spherical inflated balloon is submerged in a pool of water. if it is further inflated so that its radius doubles, how is the buoyant force affected?

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Alivia Stephens · Answer 1

The buoyant force on a submerged object depends on the object's volume, because that's how much water it displaces.

When you double the radius of a sphere, its volume is multiplied by 8. So if the balloon is kept completely submerged, the buoyant force on it is also 8 times as great as it used to be.