Hi can u help me in physics homework

okay i have so many questions. but the big one here is: um wt..f is this mess? ?

here we know that ball will drop down by total distance 3.2 m

so here we know that

now using kinematics

now in the same time it will cover horizontal distance of 0.75 m

so speed of the ball will be

c

explanation:

battery with hi vtge high val resist in series