Originally Posted by
lpolliard
Riddle me this Batman???
If Newton's Law states that two objects of differing mass will fall at the same speed (in a vacuum) then why does a heavier cyclist descend faster than a lighter cyclist?
My guess it has to do with wind resistance.
It does indeed. The heavier cyclist's ratio of weight-to-surface area is more advantageous. Even though the two cyclists might weigh stones apart, their surface area will [usually] vary by a much smaller amount.