Solve the all parts of given problem:
Problem: A 230-g hockey puck originally sliding on ice in the +x direction with a speed of 0.50 m/s collides with another puck of equal mass at rest. After the collision, the first puck is seen to move with a speed of 0.2 m/s in a line that makes an angle of 37 degrees with the x axis (cos37=4/5 , sin37=3/5).
Part A: What is the velocity of the other puck?
Part B: Is this collision approximately elastic?
I have been stuck on this problem for a long time, please help. Show steps. Thanks!