Falling

Dropped near above surface of Earth. Ignoring air resistance, i.e. as if in a vacuum.

Distance fallen after t seconds: s(t) = 4.9t2
Velocity at time t: v(t) = 9.8t

time falling distance fallen in meters speed in m/s speed in MPH
1s 4.9 9.8 22
2s 19.6 19.6 44
3s 44.1 29.4 66
4s 78.4 39.2 88
5s 122.5 49 110
6s 176.4 59 132
7s 240.1 68.6 154
7.9s 303m=1000' 77 172
10s 490 98 220

In a vacuum, weight and shape of falling object have no effect.


Skydiving
spread-eagled: terminal velocity approximately 120–180 mph (53–80 m/s)
head-first: often reaching 200–250 mph (89–111 m/s)

Red Bull: step out of balloon at 39 km (24 mi = 126,720'), reaching an estimated top speed of 1,357.64 km/h (843.6 mph). 4'19" freefall.
Another: 135,890 feet (41.42 km) and lasted 4'36" in freefall.