The initial velocity of the ball is
.
The acceleration of a vector is
.
Find where does the ball land with what speed.
\The accelaration vector is
.
To find the velocity vector integrate the accelaration vector with respect to
and adding the initial values.

Substitute the corresponding values.
\
.
To find the position vector is by integrating the velocity vector with respect to
.

.
When the ball hits the ground at the position
.
.

and 
and
.
Substitute
in
.
.
The ball land at
.
Substitute
in
.
.
.
The speed of the ball is
.
The ball land at
with the velocity
.