y 1s used for1 How much energy does it consume ? Express your answer in ) kWh, (ii) joule. Ans. (i) 30 kWh, (ii) 1-08 x 10 J. A water pump raises 50 litre of water through a height of 25 m in 5 s. Calculate the power of the pump required. (Take g 10 N kg and density of water 1000 kg m). A pump is used to lift 500 kg of water from a depth Ans. 2500 W of 80 m in 10 s. Calculate:

y 1s used for1 How much energy does it consume ? Express your answer in ) kWh, (ii) joule. Ans. (i) 30 kWh, (ii) 1-08 x 10 J. A water pump raises 50 litre of water through a height of 25 m in 5 s. Calculate the power of the pump required. (Take g 10 N kg and density of water 1000 kg m). A pump is used to lift 500 kg of water from a depth Ans. 2500 W of 80 m in 10 s. Calculate: , A water pump raises 50 litre of water through a height of 25 m in 5 s. Calculate the power of the pump required. = 10 N kg-l and density of water (Take g = 1000 kg m-3). Ans. 2500 W