From a high altitude a balloonist simultaneously drops two balls.
  1. The balls are of identical size, but appreciably different in mass. Assuming both balls reach terminal velocity during the fall, which of the following are true?
    1. The heavier ball reaches terminal velocity first.
    2. The heavier ball hits the ground first.
  2. Suppose the heavier ball were much larger in diameter than the small ball. How would this affect the outcome?