an athletic completes one round of a circular track of diameter 200m in 40 second what will be the distance covered and the despair displacement at the end of 2 minutes 20 second ?
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Answer:
time taken to complete one round: 4 sec
Total time: (2×60+20) sec
=140 sec
no. of rounds completed: 140/40
=3.5
distance covered: 2πr×3.5
=2×22/7×200/2×3.5
=2200m
if the athletes starts from the point A on completion of 3.5 rounds, then he/she will
be at point B.
thus,
displacement: AB=200m
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