JAMB - Physics (1984 - No. 31)
If a water pump at Kainji Dam is capable of lifting 1000kg of water through a vertical height of 10m in 10s, the power of the pump is [g = 10ms-2]
1.0kW
10.0kW
12.5kW
15.0kW
20.0kW
Explicació
power = \(\frac{\text{work done}}{time}\)
= \(\frac{1000 \times 10 \times 10}{10}\)
= 10kW
= \(\frac{1000 \times 10 \times 10}{10}\)
= 10kW