believe me, after your step by step help, and me watching my mistakes and learning from them, i know what to look for in future similar questions.
thank you
I don't know how to do those fancy equations so, this is the best i can do
(0-10)t + 1/2 (9.8-8)t^2=0
-10t + 0.9t^2=0
if you sub that into the quadratic you get 50 or another number if you use the other root...
i also want to know where the 3 second delay of the diver comes into play in these...