(100 watts) = 100 joules/second
(100 joules/second) x (3,600sec/hour) = 360,000 joules/hour
360,000 joules = 360,000 newton-meters
Weight of 2,000 kg on Earth = (2,000 kg) x (9.8 m/s²) = 19,600 newtons
(360,000 newton-meters) / (19,600 newtons) = 18.4 meters off the ground
