Not litecoin, but litecoin testnet: more like 11 MH/s
but is it worth it?
there's no need to prove anything by attacking, just go to hash rental site and see how much it costs to rent that for an hour.
edit: I felt attacking POS was needed to prove the point, because the point has been made and ignored many times.
I'll say it again just in case: you don't need 51% of the supply, you need 51% of the staking weight (actively forging stake, or whatever you call it). And for most coins, that's about 5% of the supply. There's no secret attack. Only splitting the staking weight so it's not affected by each block you mine/mint/forge/whatever.
There are already many examples of both SHA256 and Scrypt coins being attacked so wasting time on the litecoin testnet where coins with the exact same algo have been attacked is not needed.
With PoS there are different variations where they make wild claims like impossible to be attacked and despite you proving yourself with Apex they will merely deflect by claiming their algo is different. Better to focus on PoS.