Question

An athelete complete one round of circular track of diameter 200 m in 40 s. what will be the distance covered and the displacement at the end of 2 min 20 s?

Answer 1

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Answer 2

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Given ,

→Time= 2 min 20s= 2× 60+20 = 140s

→ Radius, r= 100m

In 140s, the athelete will complete three and a half round.

✿ Distance covered= 2πr × 3.5

= 2× 22/7 × 100 × 3.5 = 2200 m.

At the end of his motion, the athelete will be in the diametrically opposite position.

Therefore,

✿ Displacement= diameter= 200m

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