Question

An athlete takes t seconds to go round 5 times a circular path of radius r Athlete speed

Answer 1

Answer:

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Answer 2

Explanation:

Time taken is t seconds

radius of the circular path is r

Athlete runs 5times

now the circumference of the circle is $2\pi r$

the athlete runs 5times and hence $5*2\pi r$

distance covered is $10\pi r$

Distance = Speed x Time

$10\pi r = Speed * t$

$Speed = 10\pi r/t m/s^2$