5. A 1900 kg car rounds a curve of radius 73.0 m banked at an angle of 15.0°. What is the magnitude of the friction force required for the car to travel at 86.0 km/h? N
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We are given mass of car. We are given radius of curve and also angle of banking. We are also given speed with which the car turns. We find the frictional force by applying equilibrium condition along vertical. We obtain 2 equations and we solve them to get frictional force.
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