The two astronauts on opposite ends of a spaceship are comparing lunches. One consists of an apple, the other has an orange. They decide to trade. Astronaut 1 tosses the 0.130 kg apple toward astronaut 2 having a speed of v_i1 = 1.11 m/s. The 0.170 kg orange is tossed from astronaut 2 to astronaut 1 having a speed of 1.23 m/s. Unluckily, the fruits collide, sending the orange off having a speed of 0.991 m/s in the negative y direction.