Kernel Panics and Three Beeps
Beeping usually indicates a problem with RAM, though I think it can indicate other hardware problems too.   According to Mac computers: About startup tones:

"3 successive tones, a 5 second pause (repeating): This indicates RAM does not pass a data integrity check."

Google Drive is probably installing a driver of some sort that is currently incapatible and causing problems.  Confirm that you're running the latest version of Google Drive's software and update your OS if any updates are available.

Google addresses this problem here with a link to an update which sounds exactly like the problem you're having.