- #1
gulsen
- 217
- 0
I have an ellipse rotating around a fixed axis that passes through it's center, with a constant angular speed [tex]\omega[/tex]. I'm being asked what torque would generate this motion.
It should be [tex]\vec{\Tau} = \frac{d(I \vec{\omega})}{dt} = \dot{I} \vec{\omega}[/tex] since angular speed is constant.
I'm not sure where to go. Should I try calculating inertia tensor, that is dependent to time, maybe. I tried doing so, but because it's rotating, I've quite messed it up. Any hints on calculating inertia tensor?
It should be [tex]\vec{\Tau} = \frac{d(I \vec{\omega})}{dt} = \dot{I} \vec{\omega}[/tex] since angular speed is constant.
I'm not sure where to go. Should I try calculating inertia tensor, that is dependent to time, maybe. I tried doing so, but because it's rotating, I've quite messed it up. Any hints on calculating inertia tensor?