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A motor pump lifts 6 tonnes of water from a well of depth 25 m to the first floor of height 35 m from the ground floor in 20 minutes. The power of the pump (in kW) is [g = 10 m s^(-2)] |
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Answer» 3 HEIGHT of first floor (h) = 35 m TIME (t) = 20 m We know that, POWER, `P=("work")/("time")` `P=(mgh)/(t)` `=(600xx10xx(35-25))/(20)` `= (600xx10xx10)/(20)` `= (6000)/(2)=3000 W = 3k W` |
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