1. The problem statement, all variables and given/known data If I have a bird that flies into a flag-pole with velocity x m/s, and the flag-pole trips, how do I find the linear momentum of the flag-pole/bird system? (The bird gets stuck to the flag-pole). 3. The attempt at a solution I know how to find the angular momentum, but does it even make sence to talk about linear momentum in this case?