Determine the maximum velocity at which a car can travel if the banking angle is 15º for the following conditions 1) It is not to slide radially outwards. 2) It is not to roll over. given: coefficient of friction as 0.4 r = 60m width of car is 2m and height from bank to centre of car is 0.5m 2. Relevant equations Looking at some work i think the equation that i need to use is V = square root (( tan feta + coefficent of friction/ 1-coefficent of friction tan feta) x r x g) 3. The attempt at a solution my attempt at this solution gave me an answer of 22.9m/s so 23m/s i wanted to check if this was correct and im confused on why i have been given the lenght of the car and its distance from bank to centre of car.