The super elevation needed for a vehicle travelling at a speed of 90 kmph on a curve of radius 600 m on a surface with a coefficient of friction of 0.15 is
1
0.1
2
0.043
3
-0.043
4
0.01
5
0.07
The super elevation needed for a vehicle travelling at a speed of 90 kmph on a curve of radius 600 m on a surface with a coefficient of friction of 0.15 is