I have a question that I can't seem to get my head around. I'm really rusty on my physics, but I'm sitting here trying to think this out, but I'm missing a really big part of the equation.
So lets say I have a turbine in space. It's purpose is to convert the energy given to it, in joules to watts. So I realize we will have friction, and we need to overturn the static friction before turning can be achieved.
I want the device to turn at a relatively high speed, therefore F > Ff. However, this will create a situation where the device will constantly accelerate, because there is F and not being apposed by friction, Fn = ma.
So here is my thought process for the situation.
Force needed to start turning...
F = Fn - Ff
Energy needed to start turning...
W = Fd
W = (KEf - KEi) where KEi = 0
a = F/m
Since there will always be force, and constant supply of energy, the device will accelerate to infinity, supplying infinite energy in watts? I understand this to be fundamentally impossible... So where am I going wrong? I feel like this will be a facepalm moment, but I just can't seem to remember what I'm missing here.