I hate when that happens, first your
then you are
Sorry to hear of the fall, I know now it feels
You could try the AC adapter but what good would it do even if it worked.
The camera obviously took a high g-force impact and something gave, I guess we all know that. I have heard of the SD card reader not working after a fall, the OVF glass breaking, but I have never read of it not working at all. Pentax gives free estimates. At least if it worked fine with the AC adapter you will know it was not completely fatal and the repair cost should be reasonable, but you never know with Pentax.