If you drop a pound of lead and a pound of feathers off a 100' building which will hit the ground first?
The lead since the feathers have more resistance to air.
BTW... the final climb in today's Vuelta Espana
Alto de L'Angliru
Gain in altitude: 1,266 m (4,154 ft)
Length of climb: 12.5 km (7.8 mi)
Average gradient: 10.1 %
Maximum gradient: 24 %