when the crew of Apollo 10 set the human speed record of 24,800 mph, they were only moving In our everyday experience, objects travel at very much less than the speed of light (c). Even at a measly 0.00004 c, with a Lorentz factor of y - 1.000000001. So even though it would be more correct to apply Einstein's Relativity in all situations, we can get away with applying the rules of Galilean Relativity in our everyday lives. At these speeds we don't see any hint of length contraction or time dilation, and calculating the speed of a moving object within a moving reference frame is simple and intuitive. 1. You're standing near the railroad tracks as your friend passes you at 200 mph on a high- speed train. They fire an M16 rifle in the same direction the train is moving, and they observe the bullet leaving the barrel at a speed of 2,180 mph. How fast would that bullet be moving relative to you? Explain your reasoning.