Rankers Physics
Topic: Work Energy and Power
Subtopic: Power

Water from a stream is falling on the blades of a turbine at the rate of 100 kg/s. If the height of the stream is 100 m, then power delivered to turbine is
100 kW
0.1 kW
10 kW
1 kW

Solution:

Power is Rate of doing work. 

Power = mgh/t= (m/t)gh= 100 × 10 × 100 = 100 kW

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