The power of a motor pump is $2 k W$ . How much water per minute the pump can raise to a height of 10 m? $(G i v e n g = 10 m s^{- 2})$

300 k g

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600 k g

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1200 k g

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2400 k g

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Solution

The correct option is D $1200 k g$
Power of pump $= 2 k W = 2000 W$
Time(t) $=$ 60s
Height(h) $=$ $10 m$
g $= 10 m s^{- 2}$
We know,
Power $=$ work done per unit time
Work done $=$ mgh
$= m \times 10 \times 10$
$=$ 100m
Power $= \frac{100 m}{t}$
2000 $= \frac{100 m}{60 s}$
m $= 1200 k g$
Hence,pump can raise $1200 k g$ water per minute up to $10 m$ height.

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Similar questions

g = 10 m s^{- 2}

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 $10 m$ ?

2 k W

10 m

(g = 10 m / s^{2})

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