y and Momentum Unit Review 7. A stationary 300 kg puck is struck by a 200 g puck moving with a velocity of 2.00 m/s West. After the collision, the 200 g puck has a velocity of 1.00 m/s [53.0 N of W]. Calculate the velocity of the 300 g puck. ckg 206 ka 8 Two balls of equal mass are involved in a glancing collision. Before the collision, the first ball is moving at a velocity of 1.00 m/s East and the second ball is at rest. After the collision, the first ball is moving at a speed of 5.50 x 10" m/s [24.0' S of E]. The second ball heads off at an angle of 24.2 N of the second ball after the collision