If the athelete takes t seconds to go once around the circular path of radius
r the velocity v is given by
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Time taken for one complete round = t secs
Radius = R
Circumference of circle = 2πR
Distance covered = 2πR
As he reaches at same point hence displacement = 0
Velocity = Displacement / Time = 0/t = 0
None of the given option is correct
Speed = Distance / Time
= 2πR/t
2πr/t
Explanation:
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