Question

@Abhisar Please help me solve this question.
A corner on a racing track has a radius of curvature of 125m. What is the minimum coefficient of static friction between the tyres of a car and the track so that a car does not skid when taking the bend at 108km/h?

Answer 1

NO i have to write that again :(

Answer 2

???

Answer 3

\[F _{c} = m \frac{ v ^{2} }{ r }\]
\[friction .force = \mu mg\]
u is the coefficient of friction
and to prevent the car from skidding 2 forces must be at least equal.
\[m \frac{ v ^{2} }{ r } = \mu mg\]
\[\mu = \frac{ v ^{2} }{ r g }\]