Let's say we have a wheel rotating at a constant speed $s$.
Suddenly at time $t=1$ we stop applying force to it.
What is the law for the decrease of the speed, until it stops?
I guess it will look like this:
Question: Will the speed decrease be proportional to:
- or I guess, more or less, a sigmoid function?
- Something else?
we neglect the impact of the removal of the device which made it rotating.
friction occurs between the plastic axle of the wheel and the frame, and also air resistance / friction.