Question

if the same amount of work needed to keep a 100W light bulb lit for one hour could be used to lift a 2000 kg SUV, what height could it be lifted to?

Answer 1

(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