Calculating Stopping Distance from starting speed and constant deceleration

I know this is simple but I can't remember how to do this at all! Just going over antiderivatives...

Starting speed = 55mph (straight road)
Constant deceleration = 11ft/s^2

How do I work out the stopping distance?

Thanks for any help!!

convert to



calculate the amount of time it takes to stop ...

stopping distance =

note that the stopping distance is very easy to calculate with a velocity graph.