The average speed of 0~20m is 20m/2.3s=8.7m/s in Wang Xiaobing, 20m/2.4s=8.3m/s in Liu Lei and 20m/2.5s=8m/s in Zhou Wei.

The average speed of 20~80m is 60m/(8.4-2.3)s=9.8m/s in Wang Xiaobing, 60m/(8.3-2.4)s= 10.2m/s in Liu Lei and 60m/(8.4-2.5)s = 65438+ in Zhou Wei.

Average speed of 80~ 100m: 20m/( 12.2-8.4)s=5.3m/s in Wang Xiaobing, 20m/(11.8-8.3) s = 5.7m/s in Liu Lei.

Its form is as follows

Name/Average Speed/Interval

0～20m

20 ~ 80 meters

80 ~ 100 m

Xiaobing Wang

8.7

9.8

5.3

Liu lei

8.3

10.2

5.7

Zhou Wei

8.0

10.2

6.7

(2)

From 0 to 0~20m, Wang Xiaobing runs fastest, Zhou Wei runs slowest, and Liu Lei is in the middle.

In the 20~80m, Liu Lei and Zhou Wei run fastest, Wang Xiaobing is the slowest, Zhou Wei tied Wang Xiaobing, and Liu Lei surpassed Wang Xiaobing for the first time.

80~ 100m, Wang Xiaobing is still the slowest, Zhou Wei runs the fastest, surpassing Liu Lei to get the first place and Liu Lei to get the second place.