Question

an athlete completes one round of circular track of diameter 200 m in 40 seconds what will be the distance covered and the displacement at the end of 2 minutes 20 seconds

Answer 1

radius of track = 100 m
speed = dist/time
speed = 2×pie×r/time
speed = 15.7m/s
now
15.7=dist/140sec
dist=2198m
dispacemet=15.7×20
=314 m

Answer 2

Answer:

314 m

Explanation:

radius of track = 100 m

speed = dist/time

speed = 2×π×r/time

speed = 15.7m/s

now

15.7=dist/140sec

dist=2198m

dispacemet=15.7×20 =314 m