On August 8, 2008, the 29th Summer Olympic Games was held in Beijing. In the men's 100m Sprint race, the athletes walked fast. On the speed of the athletes' movement, the audience used the same time to compare the speed of the movement; the referee used the same time to compare the speed of the movement________ To compare the speed of motion; in physics____________ To compare the speed of the movement

On August 8, 2008, the 29th Summer Olympic Games was held in Beijing. In the men's 100m Sprint race, the athletes walked fast. On the speed of the athletes' movement, the audience used the same time to compare the speed of the movement; the referee used the same time to compare the speed of the movement________ To compare the speed of motion; in physics____________ To compare the speed of the movement

First: the same distance than time second: speed