If a scooter has an acceleration of 2.5m/s^2 , how fast is the scooter going into the acceleration

11.25m/s

none of this makes sense to me.

To find out how fast the scooter is going before it accelerates, we need some additional information. Specifically, we need to know the initial velocity of the scooter (often denoted as "u" or "v0").

If you have the initial velocity, you can simply add it to the product of the acceleration and the time taken for the scooter to reach that acceleration.

However, if you don't have the initial velocity, we won't be able to determine the speed accurately.