What is smaller than a quark, theoretically?​

A photon would be smaller than a quark, but remeber

things are very    

diferent down there so this wouldent eally rwork

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