Calculate the power of a pump that can lift 200 kg of water through a height of 6 m in 10 seconds. (1200 watts)
Difficulty: Easy
Solution:
Mass = m = 200 kg
Height = h = 6m
Power = P = ?
Power =$\frac{work}{time}$ = $\frac{w}{t}$ = $\frac{mgh}{t}$
P = $\frac{(200 \times 10\times 6)}{10}$
P = 1200 W