A rectangle block with dimension
a*b*c floats on water. The block's mass density is a half of water density, so only half part of the block inside the water. See picture below.

Find the minimum value of
a/b in order to make it stable, if it's rotated slightly around axis O!
(Hint: if you understand the concept, it would be much easier)
I think it will be in stable equllibrium for any value of a/b.
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