learn something new everyday, and its making my head hurt Options

[brer]

So last night we were working on rotational motion and all i could think about was the crank in my motor and my car going around a corner..
anyone want to help explain this to me?


An object spinning at a constant speed has less acceleration at each consecutive point as you move further out from the center.
acceleration being related to the radius of the rotational orbit and the constant change in directional velocity.


Makes me car sick just thinking about it.

(IMG:http://www.914world.com/bbs2/html/emoticons/barf.gif)

[bondo]

I'm confused by the spinning object situation...

If something is spinning at x RPM, every point on it is changing direction at the same rate. The points farther from the center are moving at a faster speed, but their direction is changing at the same rate as points close to the center. It seems to me that the outside points should have GREATER acceleration if you're looking at constant RPM.

This also makes sense in a real world sense as it's trickier to make large hign rpm rotational devices than small ones. Gyroscopes also put most of the mass on the outside. Hmm..