🚀 go-pugleaf

In article <1993Jan11.234038.4210@netcom.com> harp@netcom.com 
(Gregory O. Harp) writes:
#Regarding the falling bullets argument, what does it matter if it's
#moving 300fps or 1000fps?  300fps is sufficient to cause bodily harm
#and/or death.  
#
#I recall hearing stories (possibly urban legend) of pennies being
#dropped from tall buildings (i.e. the Empire State Building and
#taller) and killing people who were walking on the sidewalk below.
#Also, witness what large hailstones do to cars.  Moral: Any object
#falling from sufficient height is dangerous.

This might happen on the moon, but on Earth all objects reach a terminal
velocity at which the rate of momentum transfer imparted by the incident
air stream equals that imparted by the Earth's gravitational attraction
(F = mg = kv).  The penny would reach terminal velocity long before it
attained a lethal velocity.