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

Acceleration is measured in meters per second per second (not a typo). It looks better to write 5 m/s^2 than 5 m/s/s which is exactly the same thing.