The perimeter of the track and field track is 400 meters. The straight part of the track is selected for the 100 meter race. The distance for the athletes to complete the whole race is 400 meters______ And the displacement is______ In the 800 meter race, athletes from different runways complete the whole distance______ (fill in the same or different), displacement______ (fill in the same or different)

The perimeter of the track and field track is 400 meters. The straight part of the track is selected for the 100 meter race. The distance for the athletes to complete the whole race is 400 meters______ And the displacement is______ In the 800 meter race, athletes from different runways complete the whole distance______ (fill in the same or different), displacement______ (fill in the same or different)

The 100 meter race is a one-way straight-line movement, and the displacement is equal to the distance, so x = s = 100m. The displacement is a directed line segment from the initial position to the final position. The circumference of the track and field track is 400 meters, and the 800 meter race runs two laps, but the circumference of different tracks is different, so the final position is different, so the displacement is different; the distance is 800 meters, the same. So the answer is: 100 meters, 100 meters, the same, the different