1. The problem statement, all variables and given/known data You throw a 0.42-kg target upward at 15 m/s. When it is at a heigh of 10 m above the launch position and moving downward, it is struck by a 0.338-kg arrow going 27 m/s upward. Assume the interaction is instantaneous. a)What is the velocity of the target and arrow immediately after the collision? b)What is the speed of the combination right before it strikes the ground? 2. Relevant equations Not a homework problem. This is practice questions for an upcoming midterm and im not sure how to go about this. An answer with an explanation would be great but if all you can provide is an answer I would be grateful. 3. The attempt at a solution I am not sure where to begin. Conservation of momentum maybe? but even with that im not sure how to bring gravity into it.