If the design speed is V kmph and deviation angle is N radians, then the total length of a valley curve in meters is given by the expression
A
$$3.8{\text{ N}}{{\text{V}}^{\frac{1}{2}}}$$
B
$$3.8{\left( {{\text{N}}{{\text{V}}^3}} \right)^{\frac{1}{2}}}$$
C
$$0.38{\left( {{\text{N}}{{\text{V}}^3}} \right)^{\frac{1}{2}}}$$
D
$$0.38{\text{ N}}{{\text{V}}^{\frac{3}{2}}}$$
Correct Answer: $$0.38{\left( {{\text{N}}{{\text{V}}^3}} \right)^{\frac{1}{2}}}$$
