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Answer:
Box A
Explanation:
Let mass of each wooden box =m
Density of box A=
Density of box B =
Density,
Density of inversely proportional to volume.
The volume of box with smaller density is larger than the volume of box with large density.
When the boxes are submerged under water.
Then, the buoyant force=
Where V=Volume of displace fluid.
Density of fluid
Buoyant force of box A=
Buoyant force of box B=
Force=Buoyant force
Acceleration is directly proportional to volume.
Therefore,the box with large volume has greater acceleration.
Hence, the box A has greater acceleration.