Hi, I have been struggling with physics (SPH4U) practice question that relates to 2D collision. This is the question: A hockey puck of mass 0.16 kg, sliding on a nearly frictionless surface of ice with a velocity of 2.0 m/s [E], strikes a second puck at rest with a mass of 0.17 kg. The first puck has a velocity of 1.5 m/s[N 31°E] after the collision. Determine the velocity of the second puck after the collision.