Physics

Problem

A pump rated

2\,\text{kW}

lifts

500\,\text{kg}

of water vertically through

10\,\text{m}

. Taking

g = 10\,\text{m/s}^2

, the minimum time required for this task is a)

5\,\text{s}

25\,\text{s}

250\,\text{s}

2.5\,\text{s}