A body covered a distance of `l` metre along a semicircular path. Calculate the magnitude of displacement of the body, and the ratio of distance to displacement.

A body covered a distance of `l` metre along a semicircular path. Calc

1.	A body covered a distance of `l` metre along a semicircular path. Calculate the magnitude of displacement of the body, and the ratio of distance to displacement.
Answer» Let (r ) be the radius of semicircular path. Here, ` l=(2 pi r//2)` or ` r =l//pi`. Diameter `=2 r =2 l// pi , Magnitude of displacement `= diametr `=2 l//pi` (Distance )/(Displacemnt) = l/(2// pi) =(pi)/2`.

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A body covered a distance of `l` metre along a semicircular path. Calculate the magnitude of displacement of the body, and the ratio of distance to displacement.

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