WRITE THE LINEAR IMPULSE RELATION FOR THE PERPENDICULAR DIRECTION TO Y. PLEASE WRITE HERE.
Extracted text: UB Billiard ball A is moving in the y-direction with a velocity of 2 m/s when it strikes ball B of identical size and mass initially at rest. Following the impact, the balls are 30 50 observed to move in the directions shown. B 2 m/s A.