The formula for the upthrust acting on a block of wood that is partly submerged in water is given as $F = \rho g V$. What do the symbols $\rho$ and $V$ stand for?
- A$\rho$: density of water; $V$: volume of whole block
- B$\rho$: density of water; $V$: volume of block below surface of water
- C$\rho$: density of wood; $V$: volume of whole block
- D$\rho$: density of wood; $V$: volume of block below surface of water