Falling (without air resistance)
If we treat up as +y, then we have these two equations:
y = yo + vyo *t + (1/2)*g*t2 and
vy = vyo + g*t where g = -9.8 m/s2 .
Here, we have simply used y for yfinal and we have used yo for yinitial. The same notation is also used for v.