Question

an athlete complete one round of a circle track of diameter 200 m in 40 second what will be the distance covered and the displacement at the end of 2 minutes 20 second​

Answer 1

Answer:

Distance=720 pi meters.Displacement=200m

Explanation:

total time=140 seconds

speed=2*pi*100/40 m/sec=5 pi m/sec

Distance=speed*time=5*pi*140 seconds=720 pi meters.

Displacement= Distance between initial and final positions which is

                      =200m(as the athlete would have completed 3.5 rounds,and is currently a diameter across his initial position.)