An engine pumps up 100 kg of water through a height of 10 m in 5 s. Given that, the efficiency of engine is 60%. If g = 10 ms -2 , the power of this engine is:
Text Solution
Verified by ExpertsThe correct answer is:
A
Efficiency of engine 
= 60%
Thus, power = 
= 
Given m = 100 kg, h = 10 m, t = 5 s
and g = 10 ms –2
Hence, power = 
= 3.3 × 10 3 W
= 3.3 kW
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