Solve the all parts of given question:
Question: You throw a .6 kg target upward at 15 m/s. When it is at a height of 10 m above the launch period and moving downward, it is struck by a 0.3 kg arrow going 24 m/s upward.
Part A: What is the velocity of the target and arrow after the collision?
Part B: What is the speed of the combination right before it strikes the ground?
I need help to find the velocity of the target and arrow after the collision.