The Boat/Rock Brainteaser ft Simone Giertz part 2/3

To be honest, at first I'd jumped to the assumption that their velocities would be the same since she said "when they both reach terminal velocity"..  it's my fault that I made that leap.  

Later I realized -- HEY, the terminal velocity of the lighter thing will be way lower -- so it IS like the feather vs the hammer.. the feather has a wee tiny bit of air resistance and the hammer has to have a LOT more air-resistance to deal with if it's at it's terminal velocity.