Thanks osilmag. Right, this is challenging, hence why I've read everything including a book on off-center impacts and haven't found a simple solution. But I am not a physicist by training, so I am suspicious that I've already come across the solution and didn't recognize it.
My apologies, I forgot the difference between elastic and inelastic collisions. This would be of the latter form, but all I care about is the KE available in the impact, so the specifics of the collision can be simplified as much as possible.
I'm trying to understand basic principles of ancient thrown weaponry. Let's say we have something like a bar with a known inertia tensor that is thrown from one end such that it is both rotating and translating. If it strikes something along either side of its center of mass (an off-center...