9. Water falls on the blades of turbine from a height of 50 m. 100 kg water pours on the blades in 15 seconds. Assuming whole energy to be transferred, what is the power developed by the turbines?
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Answer:
Work done = Force × Distance.
From the question :
Force = 100 × 10 = 1000N
Distance = 50m
Work done = 50 × 1000 = 50000Joules
Power = Work done /Time
The time = 1 second.
Power = 50000/1 = 50000 Watts
= 50kW
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