Question

an athlete completes one round of a circular track of diameter 200 m in 40 seconds what will be the distance covered and the displacement at the end of 2min 27sec

Answer 1

please mark me as brainleist

Answer 2

Circumference of the track=circumference of the circle.i.e,2πr.

=2×22/7×100(diameter =2r,r=200/2=100)
=4400/7
=628.57 m.
=629m (approx)
therefore
600 m is ran in 120s
625 m in 125s

and 127s is taken to run 627 m.

Thank you!