This is how I think the set up of the lab should look like.
I've decided the height to be y=1,5m.
The length x is assumed to be 0.32m.
where Voy =0m/s
the time it takes for the marble to drop 1,5m is 0,55s
the inital velocity of the marble is around 0,47m/s
I Think I have the...