Question

Does a rotating sphere experience wind resistance?

Answer 1

Yes, because there would still be friction between the sphere and the air surrounding it. This counts as air resistance.

Answer 2

yes it does, because a certain portion of the sphere will be rotating against the wind and another portion with the wind. where the wind is able to pass over the a surface quicker, there is less force exerted; whereas in the case where the wind takes a longer time to pass over a surface, there is a greater force exerted. this is known as the magnus effect and is represented by the following:

\[F_{M}=s(\omega \upsilon)\]

where "s" is the air an average air friction coefficient, and "wv" the cross product of angular velocity of spin and velocity of the sphere itself.