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Power is defined as the rate of doing work. A cyclist is moving along a flat road. He has a mass of 70 kg and is pedaling to maintain a constant speed of 5 m/s. The cyclist experiences a frictional force of 20 N acting opposite to the direction of motion.
Power of a water pump is 2 kW. If g = 10 m/s², then find the amount of water it can raise in on minute to a height of 10 m.
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