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KIC5) WORK-POWER-ENERCump set of efficiency 80 %, lifts 800in 19.6 seconds over a headerlitres of water20 m. Its input power is) 64 kW2) 40 kW 3) 10 kw 4) 196 kwweighina 1000 ka is aning ne |
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Answer» given the volut of water is 800liters so, mass of water is 800kg ... ( density is 1kg/l) now 80% of power = Mgh/t => 0.8p = 800*9.8*20/19.6 = 8000=> power = 8000/0.8 = 10000 watt = 10kw option 3 |
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