If V is the design speed in km/hour and R is the radius of the curve of a hill road, the super-elevation

If V is the design speed in km/hour and R is the radius of the curve o

1.	If V is the design speed in km/hour and R is the radius of the curve of a hill road, the super-elevation
A.	e = V/127R
B.	e = V²/127R
C.	e = V²/225R
D.	e = V/225R
Answer» D. e = V/225R