How many rows of men could a heavy calvary charge go through before the horses ran out of momentum?

by Mr_FirstClass
penis_length_nipples

Previous posts have covered this in the past

https://www.reddit.com/r/AskHistorians/comments/1bb35c/why_was_cavalry_so_effective_against_infantry/?st=jf03hcfn&sh=20488c9c

Tldr: not many