Water ﬂows over a section of Niagara Falls at a rate of 1.43 × 10^6 kg/s and falls 62.5 m. The acceleration of gravity is 9.8 m/s^2.

Question

Water ﬂows over a section of Niagara Falls at a rate of 1.43 × 10^6 kg/s and falls 62.5 m. The acceleration of gravity is 9.8 m/s^2.
 How much power is generated by the falling water? Answer in units of MW.

Henry · Answer

P = 1.43*10^6kg/s * 9.8N/kg * 62.5m =876*10^6W. = 876MW.