Most stands on Earth. Velma moves away from him in a rocket at 299,000 km/s (100 km/s slower than light speed.) Mort sends a laser beam toward Velma. As the tip of the beam passes her rocket, Mort observes the beam to move just 1000 km/s faster than Velma, while Velma observes the beam to move at 300,000 km/s. Whose observation is correct?
