Time is on my side, yes it is

Me: …and a downward acceleration of 10 (feet per second) per second.

Student: Do you mean 10 feet per square second?

Me: I do not. I have no intuitive or explanatory idea about what a “square second” is or what it would measure. So I choose not to use as a unit of measurement.

Student: My wall calendar measures time with squared days. So a square second is 1/86400-th of a single calendar square.

Me: Get out.

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