an athlete completes one round of circular track of diameter 200m in 40s. what will be the distance covered and the displacement at the end of 2minutes 20s
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Explanation:
Given,
Diameter=200m
radius=200/2= 100m
Athlete complete one round in 40 sec
Distance covered=Circumference of circle
distance covered in 40sec=2πr
= 2×3.14×100
= 628m
Distance in one sec = 15.7 m
In 2 min 20sec = 140sec
= 15.7×140
= 2198 m
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