I have a question, if i throw the ball upward, how to get or derived a

[Erex]

i have a question, if i throw the ball upward, how to get or derived a kinematics formula using that situation.

 

[CWatters]

Perhaps take a look at the standard equations of motion (SUVAT).

http://en.wikipedia.org/wiki/Equations_of_motion#Uniform_acceleration

You know the initial velocity (u), the acceleration (g) the final velocity (v) at the high point.