NEET UG PHYSICS MCQ: MOTION IN A STRAIGHT LINE

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An athlete completes one round of a circular track or radius R in 40 sec. What will be his displacement at the end of 2 min. 20 sec

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Correct option: B

Option B (2R) is correct because after 2 minutes and 20 seconds, the athlete completes 3.5 rounds, ending up diametrically opposite the starting point, hence the displacement is 2R.

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