a 5 kilo watt motor is used in raji's house.the stump is at adepth of 5m and the tank on the top of the house is at a height of 45m.The dimensions of the tank are 5m*3m*2m.find the time taken by the motor to fill the tank.you may assume density of water top be 1g/cc and acceleration due to gravity to be 10m/s.s
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