1. The problem statement, all variables and given/known data This is a question from the physics textbook Don't Panic Volume I, chapter XIV. A man, mass M, stands on a massless rod which is free to rotate about its center in the horizontal plane. The man has a gun (massless) with one bullet, mass m. He shoots the bullet with velocity vb, horizontally. Find the anglular velocity of the man as a function of the angle θ which the bullet's velocity vector makes with the rod. 2. Relevant equations L = r x mv = mrvsinθ L = mr2ω 3. The attempt at a solution Initial L = m(l/2)vbsinθ Final L = M(l/2)2ω Therefore, ω = (2mvbsinθ)/Ml What do guys think? Was I correct in using conservation of angular momentum? It is a very weird question compared to the rest. Thanks in advance!