Question

A particle completes semicircular path of radius r. The ratio of distance
travelled and displacements of particle will be :
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Answer 1

Answer:

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. HOPE THIS HELPS.