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Power

What is the p...

Question

What is the power of a pump which takes $10 s e c$ to lift $100 k g$ of water to a worn tank situated at a height of $20 m (g = 10 m / s^{2})$ ?

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Solution

Power $P = \frac{W o r k d o n e}{t i m e} = \frac{m g h}{t}$

So, $P = \frac{100 \times 10 \times 20}{10} = 2000 W$

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