1. The problem statement, all variables and given/known data A uniform stick 1.00 m long with a total mass of 270 g is pivoted at its center and is initially stationary. A 30 g piece of clay is thrown at the stick midway between the midpoint of the stick (pivot) and one end. The clay piece is going at 50 m/s and sticks to the stick. What is the angular velocity of the stick after the collision? 2. Relevant equations Conservation of angular momentum. Li = Lf 3. The attempt at a solution I = moment of inertia for stick ms = mass of stick mb = mass of bullet v = velocity of the bullet r = distance between the pivot and where the bullet hit = 0.5 m Iω(rod) + (mb)vr = Iωf(rod) + (mb)ωf Iω(rod) = 0 ωf = ((mb)vr)/(I + (mb)) I = (1/12)(ms)r^2 ωf = 14.286 rad/s I assumed the angular velocity is the same for the mass and the stick, since they are stuck together. Thanks.