Question

Find the maximum speed at which a car can turn round a curve of `30 m` radius on a level road if coefficient of friction between the tyres and road is `0.4. Take g = 10 m//s^(2)`.

Answer 1

Correct Answer - `11ms^(-1)` .
`v = sqrt(mu r g) =sqrt(0.4 xx 30 xx 10) = 11m//s` .