# A 66.0 kg person climbs stairs, gaining 3.70 meters in height. Find the work done (in J) to accomplish this task?

I got: $2393 J$
He is doing work against gravity and at the end he will "gain" a potential energy equal to $m g h$ that he will need to input through work (...energy conversion through his muscles, perhaps).
$W = m g h = 66 \cdot 9.8 \cdot 3.7 = 2393 J$