A car is rounding a 515 m frictionless curve in the highway. If the curve is banked at an angle of 12.0 degrees, what is the maximum speed of the car? (1.5) I achieved an answer of 32.39 m/s or 116.604 km/h . I used an incline plain to find that Fc = mgsin12 and used that to find the answer along with the Fc = mvsquared / radius formula. I made them equal cancelled the mass and solved for V - got the answer above. The answer isn't avaliable so if anyone could check it I would appreciate the assistance.