Question

an athlete completes one round of a circular track of diameter 200 m in 40 sec. what will be the distance covered and displacement at end of 2 min 20 sec ??

Answer 1

Answer:

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.

Explanation:

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Answer 2

Answer:Distance=2200m and Displacement =200m

Explanation:

Diameter =200m, Time=2 minutes 20 seconds=140seconds, Diameter= 200m ,radius= Diameter/2= 200/2= 100m

Round in 40 seconds= 1

Rounds in 40 seconds= 140/40= 3.5 rounds

Distance= Number of rounds*2pir= 3.5*2*22/7*100= 0.5*2*22*100 = 2200m

Displacement= 200m because he come back to its initial position

Therefore, Distance would be 2200m and Displacement would be 200m