Same question as this link except my teacher changed the numbers. 1996-B No.1 part C http://lodischool.tripod.com/dovesol/DOVE96SOL.pdf Velocity of Bock A=4v0 2. mv+mv=mv+mv 3. I understand how to do the question in the pdf file. However, I don't understand how the concept applies in my teacher's version. Solving for the velocity you get 2.5 m/s which is supposed to be the answer. However, the question says "the objects separate after collision". Wouldn't they not separate if they both travel 2.5 m/s after the collision? I don't understand how this is possible.