1. The problem statement, all variables and given/known data A curve of radius 15 m is banked so that a 930 kg car traveling at 48.0 km/h can round it even if the road is so icy that the coefficient of static friction is approximately zero. You are commissioned to tell the local police the range of speeds at which a car can travel around this curve without skidding. Neglect the effects of air drag and rolling friction. If the coefficient of static friction between the road and the tires is 0.300, what is the range of speeds you tell them? 2. Relevant equations Nsinø = (mv^2)/r N cos ø = mg 3. The attempt at a solution Combining these and simplifying produces rg tan ø = v^2 Solving for theta I get 50.38 I then return to the equations, but instead add friction force mgtanø = (mv^2)/r + μ(mg/cosø) and mgtanø = (mv^2)/r - μ(mg/cosø) solving these for velocity, but this produces the wrong answer (I get 37.50 km/h and 56.58 km/h) Thanks in advance for the help!