Question

An athlete completes a circular track of diameter 140 m in 20 sec .find the displacement of athlete after 20 sec

Answer 1

Explanation:

Since the athletes take 2o seconds to complete one round of circular track, hence the athlete will be at the same point after 20 seconds from where he started. Hence the initial and final positions are same.

Therefore, displacement=final position - initial position

so displacement =0 m after 20 seconds

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