The rate of equilibrium super-elevation on a road is -
(1) Directly Proportional to the square of vehicle velocity
(2) Inversely proportional to the radius of the horizontal curve
(3) Directly proportional to the square of the radius of the horizontal curve
Which of the above statements are correct?
1
1 and 3 only
2
1 and 2 only
3
2 and 3 only
4
1, 2 and 3