Question

Water has a density of 1000 kg/m^3. If a solid block with a density of 2500 kg/m^3 is thrown into a pool, will it float?

Answer 1

ask yourself this: which one will *gravity* pull on the most.
A) a block of density 2500 kg/m^3 or
B) an equivalent volume of water of density 1000 kg/m^3.

because that is precisely what is happening here.

Answer 2

Depends

Answer 3

The block will most definitely sink. :) hope this helps!