An athlete completes one round of a circular track of diameter 49m in 20seconds.calculate the distance covered and displacement at the end of 30s
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time 20 s
total time =30 s
number of rounds =30/20=2.5s
distance covered=2πr×2.5
=2×22/7×2.5×49
=770m
displacement=49m
total time =30 s
number of rounds =30/20=2.5s
distance covered=2πr×2.5
=2×22/7×2.5×49
=770m
displacement=49m
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