A ball is released from the bottom of a tank filled with water up to 2m. On reaching the top its kinetic energy is found to be 16 J. Mass of the ball is 2 kg.
Density of the ball in `(kg)/(m^(3))` is
A. `(5)/(7)xx10^(3)`
B. `(3)/(4)xx10^(3)`
C. `(2)/(3)xx10^(3)`
D. `(1)/(3)xx10^(3)`
