Question

A boy after going around a circular track of radius r comes back to the starting point. what is the
(i) Displacement of the body.
(ii) Total distance covered by him.

Answer 1

Answer:DISPLACEMENT = 0

DISTANCE = 2^r (2pier)

Explanation:the boy starts from a point and comes back on same point so displacement is 0

Answer 2

Answer:

(i) The displacement of the body is zero.

(ii) The total distance covered by him is $2\pi r$.

Explanation:

(i) We know that displacement is the change in position of the object. Since the boy returned to the exact position where he began his journey, the displacement will be zero.

(ii) The total distance covered by the boy will be equal to the circumference of the circle.

Therefore, total distance covered = $2\pi r$

Hence, the displacement of the body is zero and the total distance covered by the boy is $2\pi r$.

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