1.

If a pump can raise 1000 liters of water per minute to a height of 45 miters ,then the horse power of the pump is ?

Answer»

ind the work done by the pump that ismass*acceleration due to GRAVITY*heightin this case that is :1000*45*9.8=441000 [Convert liter into kg]so work done by the pump is 441000 joule.now according to the formula of powerpower= Work/Time you can FIND the power of the pump in this case that is: Power=441000/60 [60 seconds=1 minute]                                           =7350 wattconvert the watt to horse power by CONVERSION method746 watt EQUAL to 1 horse POWER1 watt is 1/746 horse powerand finally 7350 watt is 1*7350/746so the horse power of the pump is 9.85.Hope this helps.



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