A normal hockey puck (mn = 160 g) is at rest when a weighted training puck (mw = 280 g) collides against it with a velocity of 13 m/s [N]. This results in the normal hockey puck moving with a velocity of 9 m/s [N29W] due to the collision. Determine the final velocity of the weighted training puck. Jaden is driving bumper car A (combined mass of 160 kg) at 3.4 m/s [E] when he collides head on with Mohanad who is driving bumper car B (combined mass of 160 kg) at 2.7 m/s [W]. If this is an elastic collision, determine the final velocities of the two bumper cars.