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?
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Answer:
40 second = 200m = diameter
Radius = 100 m
s = d/t
Distance covered = 140s/40m
.... = 3.5 round
Circumference = 3.5×2πr
3.5×2×22/7×7
... 154 m
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