A piece of wood floats in water kept in a breaker. IF the beaker moves with a vertical acceleration a, the wood will

Options

A. sink deeper in the liquid if a is upward.
B. sink deeper in the liquid if a is downward, with a `lt` g.
C. come out more than from the liquid if a is downward, with a `lt`g.
D. remain in the same position relative to the water.

Answer

D