Calculate the electric potential V(h)V(h)V(h) inside the capacitor as a function of height hhh. Take the potential at the bottom plate to be zero. Express V(h)V(h)V(h) in terms of EEE and hhh.

an obstruction

ill do it for 100, also this isnt 80 its 40

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

ok

explanation: