Question

an athlete complete one round of a circular track of diameter 200 m in 40s . what will be the distance covered and the displacement at the end of 2 min 20 sec​

Answer 1

Answer:

Circumference of the circle = 2πr

Diameter = 200 m

Radius = 100 m

Distance covered in 1 round[ 40 sec ] = 2 × 22/7 × 100 = 628.57 m

Distance covered in 1 sec = 628.57 ÷ 40 = 15.71 m

2min 20 sec = 140 sec

Distance covered in 140 sec = 15.71 × 140 = 2199.4 m

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Answer 2

Answer:

900 m

Explanation:

in once time he round circular track 200 m and take 40s. he is round the circular track 4 times