Physics

Problem

A school pumps

500\,\text{L}

of water to a rooftop tank situated

12\,\text{m}

above the ground. (Density of water

=1\,\text{kg/L}

g = 9.8\,\text{m/s}^2

.) Determine the gravitational potential energy gained by the water, giving your answer in kilojoules.