For a submarine, identify when it will have the least buoyant force acting on it

Question

For a submarine, identify when it will have theleast buoyant force acting on it. Assume thatneither the volume of the submarine nor the density of the waterchange. Choose all that apply.

1 When it is full of cargo and floating onthe surface. When it is full of cargo, fully submerged,and resting on the bottom at a depth of 100 m. When it is full of cargo and fullysubmerged at a depth of 50 m.When it is empty, fully submerged, andresting on the bottom at a depth of 100 m. When it is in dry dock and no part of itis submerged in water. When it is empty and floating on thesurface. When it is empty and fully submerged at adepth of 50 m. 1

Explanation / Answer

The greatest buoyancy force will be when it displaces the mostwater. This will be when it is floating lowest in the water,so... . When it is full of cargo and floating onthe surface. When it is full of cargo, fully submerged,and resting on the bottom at a depth of 100 m. When it is full of cargo and fullysubmerged at a depth of 50 m.When itis empty, fully submerged, and resting on the bottom at a depth of100 m. When itis in dry dock and no part of it is submerged in water.When itis empty and floating on the surface. When itis empty and fully submerged at a depth of 50 m.

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