andkamen wrote:I can't do the math exactly but I think that yoda should be using substantially more power than the calculation since he not only needs to lift the fighter up a set height but he needs to get it out from a muddy swamp.
I doubt it. The friction and water pressure you're talking about scale with surface area, not mass. I mean, a massive object sinks in a bit further, but still ... surface area. So the square-cube law works in Yoda's favor here. This increased resistance
- will be much smaller on a spaceship scale than you might expect based on experience at a human body scale;
- will only happen at the beginning of the exercise - are you sure Yoda doesn't lift a little slower for the first few inches? I mean, that's what you'd expect;
- will be counteracted a little, in any case, by buoyancy.
So no, it's not gonna affect the order-of-magnitude estimates here.
(Note: yes, friction sometimes scales with weight. Like, if you were sliding the ship along the mud. But not if you're lifting it out.)