The mass of the blue puck is 10.0% greater than the mass of the green one. Before colliding, the pucks approach each other with momenta of equal magnitudes and opposite directions, and the green puck has an initial speed of 8.0 m/s. Find the speeds of the pucks after the collision if half the kinetic energy of the system becomes internal energy during the collision.
When the pucks collide, the green puck (moving right) goes up at a vertical angle 30 degrees from the horizontal (1st quad). The blue puck (moving left) goes down at a vertical angle 30 degrees from the horizontal (3rd quad).