Matter & Interactions 2nd ed. Practice Problems
Aaron Titus | High Point University
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12a0002     Conservation of momentum for colliding cars on a track.     12a0002
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A hockey puck (A) on a level air hockey table has mass = 0.100 kg and initial velocity m/s just before it collides with another hockey puck (B), which has mass kg. Just before the collision, puck B has a velocity m/s. The pucks stick together (because they are wrapped in velcro) upon colliding. What is the velocity of the system after the collision? Define the system as both hockey pucks, and assume that there is no net external force on the system.