Question

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

Answer 1

Answer:

At the end of his motion, the athlete will be in the diametrically opposite position. That is, displacement = diameter = 200 m. Hence, the distance covered is 2200 m and the displacement is 200 m.

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Answer 2

Answer:

Distance= 700 m, displacement= 100 m(because  was only 20 seconds  )

Explanation:

a. distance-200 m in 40 sec

so, distance covered in 2 min 20 sec will be

2 min 20 sec - 140s

= 200*3+200/2(fro 20 sec extra)

= 700 m