A man is revolving along a circumference of a circular track or radius and he stops after making a run around half of the circle find its distance and displacement

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Solution

Assuming the radius of the circle is R.
The distance is $π$ R.
The displacement is 2R.

Now, that is because, displacement is when one joins the starting point and ending point and finds the magnitude.
The distance on the hand is the trajectory or the path that the body has taken to travel that distance.

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