I was watching a SciFi tv show where large objects had an outer speed limit of 18000 kph and that got me wondering what things in everyday life are faster than even 500 kph.
I know bullets can be fast, but they are not exactly everyday life (at least in my life).
I included mass for obvious relativistic reasons.
radio waves dont have mass but do have relativistic mass. And you didnt clarify whether relativistic mass counted, so I’m going to go with radio waves. They travel at the speed of light. I am the winner. I’d like my nobel prize in literature now.