A 0.25-kg punk, Initially at rest on a frictionless horizontal surface, is struck by a 0.20kg punk that is initially moving along the x-axis with a velocity of 2.20 m/sec. After the collision, the 0.20 kg punk has a speed of 1.5 m/s at an angle of 37 to the positive x-axis. Calculate:
A.The velocity of the .25 kg punk after collision
B.The angle of the second punk
C.The total energy before and after collision.
D.What is the percentage of energy lost in this collision?