What is the ratio of distance to displacement when an object completes a semi circular path

Dear Aspirant,

For a circle with r radius, circumference will be 2*pi*r, and therefore the distance travelled = pi*r that is half the circumference.

For the displacement part, the particle will travel along the radius from one end to the other = 2*r(diameter).

Ratio(d/s) = pi*r/2*r = pi/2.


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