Question

14.
1
Part of a racing track is to be designed
for a curvature of 72 m. We are not
recommending the vehicles to drive
faster than 216 kmph. With what angle
should the road be tilted? By what height
will its outer edge be, with respect to the
inner edge if the track is 10 m wide?
[Ans: 0 = tan-'(5) = 78.690, h = 9.8 m]​

Answer 1

Answer:

Let

Maximum frictional force f

m

=μmg=0.3m(10)

f

m

=3m N

For maximum speed,

r

mv

2

=f

m

300

mv

2

=3m

⟹v=30m/s

v=30×

5

18

=108km/h

December 20, 2019