Thread: Banked Curve question View Single Post
 Hello, I'm sorry to bring up this old thread again, but I'm having the exact same problem. However, I decomposed friction into horizontal and vertical components. I ended up with these equations: X: Nsin(A) + fsin(A) = mV^2/R Y: Ncos(A) - fcos(A) = mg After dividing I get: (N+f)/(N-f) tan(A) = V^2/Rg = N(1 + u)/N(1-u) tan(A) = V^2/Rg = (1 + u)/(1-u) = V^2/Rg After solving this for the coefficient (u), I get ~ 0.38. However, the answer is supposed to be 0.34. g = 9.8 A = 18.785 V = 30