Question

18. A road of width 20 metre forms an arc of radius 15 metre, Its outer
edge is 2 metre higher than its inner edge. Calculate for what velocity
the road is banked.​

Answer 1

Answer:

the condition for velocity on the banked road

tanθ =

r

V

2

×g

V=

rgtanθ

but tanθ=θ=Sinθ=

30

2

(for small value)

V=

15×9.8×

20

2

=

14.7

m/s