What release height would be required for a 5 micrometer spherical spore to drift from africa to south america (distance =3200km)? assume spore density is 1.2. assume steady 6m/sec horizontal wind from africa to s.america.

Answer 1

t = x/v = 3200/6
y = 1/2(9.8) t^2
No idea what all the other stuff is about, mass is irrelevant.