Water is falling at the rate of $1000 k g$ per second. The height of the fall is about $100 m$ . The potential energy of water when it falls on the blades will be conveyed to them and P.E. is converted into K.E. of blades. Estimate the power that could be generated, if energy is not lost otherwise (Take the value of ' $g$ ' as $10 m s^{- 2}$

10 W

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100 W

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10^{6} W

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10^{5} W

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Solution

The correct option is C $10^{6} W$
Power = $\frac{w o r k d o n e}{t i m e t a k e n}$

Power = $\frac{m}{t}$ gh = 1000 $\times$ 100 $\times$ 10 = 10 $^{6}$ W

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The correct option is C 106WPower = workdonetimetaken Power = mtgh = 1000 × 100 × 10 = 106W

The correct option is C $10^{6} W$
Power = $\frac{w o r k d o n e}{t i m e t a k e n}$

Power = $\frac{m}{t}$ gh = 1000 $\times$ 100 $\times$ 10 = 10 $^{6}$ W