The power of a motor pump is $2$ kW. How much water per minute the pump can raise to a height of 10 m? (Given $g = 10 m s^{- 2}$ )

120

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1200

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1000

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200

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Solution

The correct option is B $1200$ kg
$P = \frac{W}{Δ t} = \frac{m g h}{Δ t} \Rightarrow \frac{m \times 10 \times 10}{60} = 2000 W$

or $m = \frac{12000}{10} = 1200 k g$

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Similar questions

g = 10 m s^{- 2}

The power of a motor pump in your neighbour's house is $20 W$ . How much water per minute can the pump raise to a height of $10 m$ ?

The power of a motor pump in your neighbour's house is $20 W$ . How much water can be pumped per minute to raise the height to $10 m$ ?

Take $g = 10 m s^{- 1} .$

s^{- 2}

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