View Single Post
      04-16-2008, 11:54 PM   #8
rzm3
Moderator
rzm3's Avatar
235
Rep
4,605
Posts

Drives: E92 M3
Join Date: Aug 2007
Location: USA

iTrader: (14)


I(rotational inertia)=Sum(Mass*Radius^2)

so if the additional mass were distributed evenly around the radius, inertia would increase linearly.

But being a wheel, most of the mass is distributed at the max radius, so inertia would increase somewhat quadratically.
__________________
E92 M3 DCT