What does meters per second per second mean?

Question

I googled this but I still don’t get it. I’m not mathematics inclined at all so literally make this a ELI5!

In: 11

Answer 1

Metres measure distance.

Metres per second measure speed. (How much your position changed in one second)

Metres per second per second measure acceleration. (How much your speed changed in one second)

And you could go on… metres per second per second per second measures rate of acceleration increase (how much your acceleration changed in one second)