Question

A particlle travel along a circumfrence semicircle of radiu r.Ratio of path length and magnitude of displacement will be​

Answer 1

Explanation:

Displacement is equal to the distance between initial and final position. so in this case displacement will be equal to 2r, the diameter of the circle.

&

Distance is equal to the length of actual path traversed by the object. so in this case, displacement will be equal to the half of the circumference i.e. πr.

Answer 2

Explanation:

displacement equals to πr