An athlete completes one round of a circular track of diameter 200m in 4sec. What will be the distance covered and the displacement at the end 2min and 20s?
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Answer:
Speed=Distance/Time
Speed=200/4
=50m/s²
Now Displacement will be 0
Because The alhlete has returned to its starting point
Distance =Speed x Time
Time=2min20sec
=2x60sec
=120sec
Total Time=140sec
Distance=Speed x Time
= 50 x 140
=7000m or 7km
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