How do I know how many pixel my object would travel if it is only triggered once?
How does the calculation work? Says I want an object to move 16 pixels per second, how should I go about the setting?
Acceleration? Deceleration? Max speed?
It works like in school, acceleration and deceleration modify the velocity along time (pixels/second²) and velocity modify the position (pixels/second) 
So you’ve to set the max speed = 16, and if you want to reach the max speed instantly use a very high acceleration (9999), same for deceleration but it’s used when you stop moving.
Great! Thanks again!!!