Find the speed of an athlete who completes one lap of a circular track with radius 100m in 1 minute.
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ANSWER
Radius of circular track is r = 100m
Explanation:
So Circumference of the circular traack = 2πr
= 2 X 22/7 X 100 = 628.57
speed = distance / time
= 628.57m / 1 minute = 628.57m / 60 seconds
= 10.47 m/s.
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