A long narrow uniform stick of length D and mass ms = m lies motionless on frictionless surface of ice puck of mass Mlp m slides without spinning on the ice with a velocity Vo toward the stick; collides elastically with one end of the stick, and rebounds in the opposite direction with velocity Vf After the collision, the center of mass of the stick moves with velocity V$, and the stick rotates about the center of mass with angular velocity Ws . Throughout the process, from finite time before the collision to finite time after the collision, the angular momentum of the rod and puck system is constant bout which of the following points? Select that apply; The center of mass of the rod-puck system The center of mass of the rod The center of mass of the puck The fixed point on the ice where the center of mass of the system was located when puck collided with the rod Any fixed point in space Angular momentum is not constant around any point