A highway curve with a radius of 120 m is banked so that there is no lateral pressure on the wheels of a car at a speed of 48 kph. A car weighing 17.8 kN with 1.5-m distance between its wheels and height h = 0.70 m travels around the curve at 96 kph. (a) What is the normal force on the car's outer wheels? (b) If friction is great enough to prevent skidding, at impend? what speed would overturning Figure for Problem 2 17.8 kN Fcentrifugal B 1.5 m A4 h = 0.70 m NB NA