Question

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

Answer 1

Answer:

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Explanation:

Time taken by athlete to complete one round = 40 seconds. Distance covered = ?? Displacement = ?? Hence, the distance covered at the end of 2 min 20 seconds is 22000 m or 22 km.

Answer 2

Answer:

Distance covered by the athlete in 40s = 200m

2min 20s = 140s

Therefore, distance covered in 10s = 200m ÷ 10 = 20m

Therefore, distance covered in 140s = 20m × 140 = 2,800m

Ans. 2,800m = 2.800 km