Two carts are on a head-on collision path. The red cart has a mass of 4kg and is moving to the right with a velocity of 10 m/s. The blue cart has a mass of 5kg and is moving to the left with a velocity of -6m/s. They collide and bounce off of each other in opposite directions. The blue cart now moves to the right with a momentum of 25 kg•m/s.
