I am posting here even though this is a SnG/hand history question (sorry I don't have the regular format for this at hand right now, but remember it), but I am a beginner. Here's the situation I think I messed up on:

it's the final table of a 27 person $5 sit n go, and it is 6 handed.
Blinds are 200/400. Stacks are:
ME: a little over 10,000 chips and dealt As Tc
loose-passive: about 4,000 chips
TAG: a little under 2,000

Everyone folds except one limper (the loose-passive) and the SB (TAG) completes. I'm in the BB and raise it to 5x BB (2000).

I've been laggy since this table was really tight except for the one loose-passive. So, the limper calls (as expected), but the sb does too, which really surprises me (he was raising his big hands).

So now the pot is 6,000.

Flop: Js Qh 2c
The loose-passive checks, and I put them all in. Is this a dumb move? At the time I figure they will fold the random crap they call with, or else an underpair and maybe pair of jacks, but they are loose-passive so they might actually call with that, but even so, I still have seven outs...but EV-wise, I have low fold equity with my image and the type of opponent, and am probably behind the SB even if they do. Is that a good analysis, or what do you all think? Thanks for sharing...this is a great site!

Results here in white:

SB shows AKs, loose passive shows kjo, and loose passive wins pot and I become a short stack.