Can you solve these physics riddles? ft Simone Giertz - Part 1/3

The heavier one will experience more air resistance.  Since they both the same shape and dimensions, their surface area and coefficient of drag will be the same, thr air density will also be the same. Therefore in the drag (air resistance) equation of D=½ρV²SCd the only difference  between the two is the velocity, which changes as a function of the square of the speed. 
At the same speed, they will,have the same air resistance. But the weight force on the heavier ball is greater and can overcome the drag force more than the light ball and accelerate to a higher velocity, thus resulting in more total drag. 
Since the heavier one will fall faster in air