Question

if a tank of size 10 m×10 m× 10 M is full of water and built on the ground .if g=10ms-2 the , potential energy of the water in the tank is

Answer 1

Density of water=mass / volume
1=mass/volume
hence mass is equal to volume
so
mass=1000kg
height=10m
potential energy=mgh=1000*10*10=100000J

Answer 2

Density of water=mass / volume

1=mass/volume

hence mass is equal to volume

so

mass=1000kg

height=10m

potential energy=mgh=1000*10*10=100000J