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

It's the heavier one. Because naturally the denser object will have a higher terminal velocity and thus fall faster through the air therefore experiencing more force to counteract it's weight. 

It if you want the simple explanation, terminal velocity means the speed at which the force of air resistance and the force of gravity cancel out. And a heavier object has a higher force of gravity therefore having a higher force of air resistance.