Assuming I rotate a disk, I want to know how long it takes to completely stop, and the number of revolutions it made since I removed my fingers off the disk.
Lets say a DVD I rotate with my fingers. I only know the radians per second (velocity) of the last moment I touched the disc.
Can you guys tell me where to start?
Im trying to implement this on an iPhone app. So it would be nice if you mention equations. It should not be exact.