what is the significance of seconds squared [s^2]?

Question

Time moves at one constant. How can you have it raised to an exponent? If you have say: 3 seconds^2, is it actually 9 seconds?

In: 5

Answer 1

It means you are taking multiple rates.

My position is measured in meters.

My position is changing! My velocity is measured in how much my position changes with time. My velocity is measured in meters per second.

But my velocity is also changing! My acceleration is measured with how much my velocity changes with time. My velocity is measured in meters per second per second. or meters per seconds^2 .

… and so on.