Which animal had to exert the most work in raising the water? Which animal had to exert the greatest power to raise the water? A motor is rated at 1500 Watts and a second motor is rated at 2200 Watts. If they each needed to lift a 100 kg box 20 meters, which one would do the most work? A motor is rated at 1500 Watts and a second motor is rated at 2200 Watts. If they each needed to lift a 100 kg box 20 meters, which one would get the job done first? Convert each of your power values, which are in Watts, to horsepower by the conversion given earlier: 1 hp = 746 Watts