Question

Q) A body is moving along a circular path of radius r what is the distance and the displacement of the body when it completes
a) One revolution
b) half revolution ​

Answer 1

Answer:

half

Explanation:

Displacement is the shortest distance travelled from the initial point to the final point. After half revolution the displacement is the length of the diameter which is equal to 2r. Hence the displacement is 2r.

Answer 2

Explanation:

a) in one revolution it cover distance equal to circumference of circle which is equal to 2πr

AND displacement is zero because there is no separation between final and Intial position.

b) In Half revolution it cover πr

Here displacement equal to diameter of circle mean 2r

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