1. The problem statement, all variables and given/known data A marble with a mass of 2.0 grams moves to the left with a velocity of 2.0m/s when is collides with a 3.0 gram marble moving in the opposite direction with a velocity of 2.0 m/s. if the first marble has a velocity of 1.5m/s to the right after the collision determine the velocity of the second marble after the collision. 2. Relevant equations (before) m1v1 + m2v2 = m1v1 + m2v2 (after) 3. The attempt at a solution i need help setting it up and i will be all good..