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]

Acceleration is a change in velocity, and velocity includes direction.. (think vectors here) so if you're going 60 mph north, and decide to turn right to be heading east while maintaining the same speed (speed is independent of direction), your northward velocity goes from 60 to zero, and your eastward velocity goes from zero to 60. The tighter the turn, the faster that change happens, and the greater the acceleration, as acceleration is change in velocity over time.

The "centrifugal" force you feel in a turn is a result of your body trying to continue in the same direction at the same speed, due to intertia.