1.

The power of a motor pump is 2Kw.How much water per minute can the pump raise to a height of 20 mtrs. (given g 10 m/s2)

Answer»

Given, power of pump = 2kW =2000WTime (t)= 60secHeight (h) = 20mg = 10m/s2As you know, power =work done per unit time.Work done = mgh = m ×10×20 =200mTherefore, 2000W = 200m/60sm = (2000×60)/200Therefore, m = 600 kgSo, the pump can raise 600 kg of water in one minute.



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