the mass will be moved outward from the center with bigger rims, hence increasing rotational inertia.Originally Posted by bilog
check this explanation about rotational inertia from http://www.newton.dep.anl.gov/askasc.../phy00124.htm:
Rotational inertia is a resistance to change of rotation. The more
rotational inertia an object has, the less it responds to being spun. The
outside parts of a spinning object have to move much faster than inside
parts near the axis. How an object is built, and along what direction you
want to spin it, also affect the rotational inertia.
and conversely, it could apply to stopping the object's rotation.
other link: http://www.analyticcycling.com/WheelsInertia_Page.html




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