Answer:
Coefficient of static friction between the tires and the road is 0.92.
Explanation:
It is given that,
Radius of the curve, r = 120 m
Speed, v = 119 km/h = 33.05 m/s
We need to find the coefficient of static friction between the tires and the road. In a curved road the safe velocity is given by :
[tex]v=\sqrt{\mu rg}[/tex]
[tex]\mu[/tex] is the coefficient of static friction
g is acceleration due to gravity
[tex]\mu=\dfrac{v^2}{rg}[/tex]
[tex]\mu=\dfrac{(33.05\ m/s)^2}{120\ m\times 9.8\ m/s^2}[/tex]
[tex]\mu=0.92[/tex]
So, the coefficient of static friction between the tires and the road is 0.92. Hence, this is the required solution.
