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A racetrack curve has radius 120.0 m and is banked at an
angle of 18.0 . The coefficient of static friction between the tires and the
roadway is 0.300. A race car with mass 900 kg rounds the curve with
the minimum speed needed to not slide down the banking. (a) As the
car rounds the curve, what is the normal force exerted on it by the road?
(b) What is the car’s speed?
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