1. The problem statement, all variables and given/known data Two pucks collide on an air hockey table. Puck A has a mass of 21 g and is initially traveling in the +x direction at 6.2 m/s. Puck B has a mass of 84 g and is initially at rest. After the pucks collide, puck A moves away at an angle of 49 above the +x axis, while puck B travels at an angle of 42 below the +x axis. a. Calculate puck A's final speed. b. Calculate puck B's final speed. c. What fraction of kinetic energy was lost in this collision? I really have no clue how to start this question. Thanks in advance.