Question

An athletic complete one round of a circular track of radius r in 20 second what will be his displacement at the end of 2 minutes 20 second

Answer 1

no of sec in 2 min = 2 × 60 = 120 sec

no of revolution in 2 min 20 sec =

140 ÷ 20

70

#lovelove!

Answer 2

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$\huge{Divya}$❤