An athlete completes one round of a 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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Answer:
Explanation:
Diameter is 200 m
Dist. Covered is 2πr or πd=22/7×200m
After 40 seconds he completes 1 round
Time given is 140 seconds
After 120 seconds it completes 3 rounds and after 20 seconds he completes 1/2 part of field
So he is at other end of diameter
Displacement=diameter=200m
Dist.= 22/7×200×3m=1885.7m
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