Negative-feedback control systems a. help reach thermodynamic equilibrium
b. stabilize the internal environment at maximum entropy
C. reverse deviations in the internal environment
d. amplify deviations in the internal environment

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

dang that balls went far

no. bullets are macro objects. wave nature is for light waves, extremely tiny particles. if a light particle was the size of your finger, the bullet would be the size of the universe. so basically, that huge difference in size makes the wave nature of matter insignificant.