Vertical velocity (speed) of projectile launched at an angle
$$v_{y} = v_0\cdot sin(\alpha)-g\cdot t$$
v_y - vertical speed (velocity)
v0 - initial speed
α - angle
g - free fall acceleration
t - time
v0 - initial speed
α - angle
g - free fall acceleration
t - time
Find
It is known that:
= 