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प्रश्न
The power of a motor pump is 2 kW. How much water per. the minute the pump can raise to a height of 10 m? (Given g = 10m s−2)
उत्तर
Here, power of the motor pump, P = 2 kW
= 2000 W
Height to which water is raised, h = 10 m
As `("mgh")/"t"` or `"pt"/"gh"`
∴ Water raised per minute (= 60 s)
`(2000 xx 60)/(10 xx 10)`
= 200
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