An athlete completes one full round of a circular track of radius R in 40 seconds. What will be the displacement of the athlete at the end of 2 minutes and 20 seconds?

Answer: B. 2R

Correct Answer: B) 2R

Explanation: In 2 minutes and 20 seconds (140 seconds), the athlete completes 3.5 rounds. After 3 full rounds, the athlete is back at the starting point (displacement = 0). The remaining half-round leaves the athlete at the diametrically opposite point, making the displacement equal to the diameter of the circular track (2R).

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