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An athlete completes one round of a circular track of radius R in 40 seconds.what will be his displacement at the end of 3min.20sec?
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An athlete completes one round of a circular track of radius R in 40 s...
Calculation of Displacement
The athlete completes one round of a circular track of radius R in 40 seconds. This means the distance covered in one round is the circumference of the circle, which is 2πR.

Distance covered in 40 seconds:
Distance = 2πR

Time taken to cover 3 minutes 20 seconds:
3 minutes 20 seconds is equivalent to 200 seconds.

Number of rounds completed in 200 seconds:
Number of rounds = 200/40 = 5 rounds

Total distance covered in 200 seconds:
Total distance = 5 * 2πR = 10πR

Displacement:
Displacement is a vector quantity that specifies the change in position of the athlete. It is the shortest distance between the initial and final positions.

Displacement at the end of 3 minutes 20 seconds:
As the athlete completes 5 rounds in 200 seconds, the final position coincides with the initial position. Therefore, the displacement at the end of 3 minutes 20 seconds is 0.
In summary, the displacement of the athlete at the end of 3 minutes 20 seconds is 0 since the final position coincides with the initial position after completing 5 rounds.
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An athlete completes one round of a circular track of radius R in 40 seconds.what will be his displacement at the end of 3min.20sec?
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