Question

A cork floats in water while a solid ball made of the same material sinks,why?
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Answer 1

Answer:

A cork floats in water while the iron nail sinks because the density of cork is less than that of water. Thus, the upthrust of water on the cork is greater than the weight of the cork. Hence, it floats. ... Thus, it sinks.

Answer 2

Answer:

it's bcoz, the density of the cork is lesser than the ball and water (so, the upthrust of water on the cork is greater than the weight of the cork.), but the ball's density is quite higher thus the ball will sink but the cork can float.